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1076 vulnerabilities found for OpenSSL by OpenSSL
CERTFR-2026-AVI-0296
Vulnerability from certfr_avis - Published: 2026-03-16 - Updated: 2026-03-16
Une vulnérabilité a été découverte dans OpenSSL. Elle permet à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "OpenSSL versions 3.6.x ant\u00e9rieures \u00e0 3.6.2",
"product": {
"name": "OpenSSL",
"vendor": {
"name": "OpenSSL",
"scada": false
}
}
},
{
"description": "OpenSSL versions 3.5.x ant\u00e9rieures \u00e0 3.5.6",
"product": {
"name": "OpenSSL",
"vendor": {
"name": "OpenSSL",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-2673",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2673"
}
],
"initial_release_date": "2026-03-16T00:00:00",
"last_revision_date": "2026-03-16T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0296",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-03-16T00:00:00.000000"
}
],
"risks": [
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
}
],
"summary": "Une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte dans OpenSSL. Elle permet \u00e0 un attaquant de provoquer un probl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur.",
"title": "Vuln\u00e9rabilit\u00e9 dans OpenSSL",
"vendor_advisories": [
{
"published_at": "2026-03-13",
"title": "Bulletin de s\u00e9curit\u00e9 OpenSSL",
"url": "https://openssl-library.org/news/secadv/20260313.txt"
}
]
}
CERTFR-2026-AVI-0096
Vulnerability from certfr_avis - Published: 2026-01-28 - Updated: 2026-01-28
De multiples vulnérabilités ont été découvertes dans OpenSSL. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et une atteinte à la confidentialité des données.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| OpenSSL | OpenSSL | OpenSSL versions 3.3.x antérieures à 3.3.6 | ||
| OpenSSL | OpenSSL | OpenSSL versions 3.6.x antérieures à 3.6.1 | ||
| OpenSSL | OpenSSL | OpenSSL versions 3.5.x antérieures à 3.5.5 | ||
| OpenSSL | OpenSSL | OpenSSL versions 1.1.1 antérieures à 1.1.1ze | ||
| OpenSSL | OpenSSL | OpenSSL versions 1.0.2 antérieures à 1.0.2zn | ||
| OpenSSL | OpenSSL | OpenSSL versions 3.0.x antérieures à 3.0.19 | ||
| OpenSSL | OpenSSL | OpenSSL versions 3.4.x antérieures à 3.4.4 |
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "OpenSSL versions 3.3.x ant\u00e9rieures \u00e0 3.3.6",
"product": {
"name": "OpenSSL",
"vendor": {
"name": "OpenSSL",
"scada": false
}
}
},
{
"description": "OpenSSL versions 3.6.x ant\u00e9rieures \u00e0 3.6.1",
"product": {
"name": "OpenSSL",
"vendor": {
"name": "OpenSSL",
"scada": false
}
}
},
{
"description": "OpenSSL versions 3.5.x ant\u00e9rieures \u00e0 3.5.5",
"product": {
"name": "OpenSSL",
"vendor": {
"name": "OpenSSL",
"scada": false
}
}
},
{
"description": "OpenSSL versions 1.1.1 ant\u00e9rieures \u00e0 1.1.1ze",
"product": {
"name": "OpenSSL",
"vendor": {
"name": "OpenSSL",
"scada": false
}
}
},
{
"description": "OpenSSL versions 1.0.2 ant\u00e9rieures \u00e0 1.0.2zn",
"product": {
"name": "OpenSSL",
"vendor": {
"name": "OpenSSL",
"scada": false
}
}
},
{
"description": "OpenSSL versions 3.0.x ant\u00e9rieures \u00e0 3.0.19",
"product": {
"name": "OpenSSL",
"vendor": {
"name": "OpenSSL",
"scada": false
}
}
},
{
"description": "OpenSSL versions 3.4.x ant\u00e9rieures \u00e0 3.4.4",
"product": {
"name": "OpenSSL",
"vendor": {
"name": "OpenSSL",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2025-66199",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-66199"
},
{
"name": "CVE-2025-15469",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-15469"
},
{
"name": "CVE-2025-69419",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-69419"
},
{
"name": "CVE-2025-15467",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-15467"
},
{
"name": "CVE-2026-22795",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-22795"
},
{
"name": "CVE-2025-69421",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-69421"
},
{
"name": "CVE-2026-22796",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-22796"
},
{
"name": "CVE-2025-68160",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68160"
},
{
"name": "CVE-2025-69418",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-69418"
},
{
"name": "CVE-2025-15468",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-15468"
},
{
"name": "CVE-2025-11187",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-11187"
},
{
"name": "CVE-2025-69420",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-69420"
}
],
"initial_release_date": "2026-01-28T00:00:00",
"last_revision_date": "2026-01-28T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0096",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-01-28T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans OpenSSL. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance, un d\u00e9ni de service \u00e0 distance et une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans OpenSSL",
"vendor_advisories": [
{
"published_at": "2026-01-27",
"title": "Bulletin de s\u00e9curit\u00e9 OpenSSL",
"url": "https://openssl-library.org/news/secadv/20260127.txt"
}
]
}
CVE-2026-2673 (GCVE-0-2026-2673)
Vulnerability from nvd – Published: 2026-03-13 13:23 – Updated: 2026-03-17 17:18
VLAI?
Title
OpenSSL TLS 1.3 server may choose unexpected key agreement group
Summary
Issue summary: An OpenSSL TLS 1.3 server may fail to negotiate the expected
preferred key exchange group when its key exchange group configuration includes
the default by using the 'DEFAULT' keyword.
Impact summary: A less preferred key exchange may be used even when a more
preferred group is supported by both client and server, if the group
was not included among the client's initial predicated keyshares.
This will sometimes be the case with the new hybrid post-quantum groups,
if the client chooses to defer their use until specifically requested by
the server.
If an OpenSSL TLS 1.3 server's configuration uses the 'DEFAULT' keyword to
interpolate the built-in default group list into its own configuration, perhaps
adding or removing specific elements, then an implementation defect causes the
'DEFAULT' list to lose its 'tuple' structure, and all server-supported groups
were treated as a single sufficiently secure 'tuple', with the server not
sending a Hello Retry Request (HRR) even when a group in a more preferred tuple
was mutually supported.
As a result, the client and server might fail to negotiate a mutually supported
post-quantum key agreement group, such as 'X25519MLKEM768', if the client's
configuration results in only 'classical' groups (such as 'X25519' being the
only ones in the client's initial keyshare prediction).
OpenSSL 3.5 and later support a new syntax for selecting the most preferred TLS
1.3 key agreement group on TLS servers. The old syntax had a single 'flat'
list of groups, and treated all the supported groups as sufficiently secure.
If any of the keyshares predicted by the client were supported by the server
the most preferred among these was selected, even if other groups supported by
the client, but not included in the list of predicted keyshares would have been
more preferred, if included.
The new syntax partitions the groups into distinct 'tuples' of roughly
equivalent security. Within each tuple the most preferred group included among
the client's predicted keyshares is chosen, but if the client supports a group
from a more preferred tuple, but did not predict any corresponding keyshares,
the server will ask the client to retry the ClientHello (by issuing a Hello
Retry Request or HRR) with the most preferred mutually supported group.
The above works as expected when the server's configuration uses the built-in
default group list, or explicitly defines its own list by directly defining the
various desired groups and group 'tuples'.
No OpenSSL FIPS modules are affected by this issue, the code in question lies
outside the FIPS boundary.
OpenSSL 3.6 and 3.5 are vulnerable to this issue.
OpenSSL 3.6 users should upgrade to OpenSSL 3.6.2 once it is released.
OpenSSL 3.5 users should upgrade to OpenSSL 3.5.6 once it is released.
OpenSSL 3.4, 3.3, 3.0, 1.0.2 and 1.1.1 are not affected by this issue.
Severity ?
No CVSS data available.
CWE
- CWE-757 - Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')
Assigner
References
| URL | Tags | |
|---|---|---|
Impacted products
Date Public ?
2026-03-13 14:00
Credits
Viktor Dukhovni
Viktor Dukhovni
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"value": "Issue summary: An OpenSSL TLS 1.3 server may fail to negotiate the expected\u003cbr\u003epreferred key exchange group when its key exchange group configuration includes\u003cbr\u003ethe default by using the \u0027DEFAULT\u0027 keyword.\u003cbr\u003e\u003cbr\u003eImpact summary: A less preferred key exchange may be used even when a more\u003cbr\u003epreferred group is supported by both client and server, if the group\u003cbr\u003ewas not included among the client\u0027s initial predicated keyshares.\u003cbr\u003eThis will sometimes be the case with the new hybrid post-quantum groups,\u003cbr\u003eif the client chooses to defer their use until specifically requested by\u003cbr\u003ethe server.\u003cbr\u003e\u003cbr\u003eIf an OpenSSL TLS 1.3 server\u0027s configuration uses the \u0027DEFAULT\u0027 keyword to\u003cbr\u003einterpolate the built-in default group list into its own configuration, perhaps\u003cbr\u003eadding or removing specific elements, then an implementation defect causes the\u003cbr\u003e\u0027DEFAULT\u0027 list to lose its \u0027tuple\u0027 structure, and all server-supported groups\u003cbr\u003ewere treated as a single sufficiently secure \u0027tuple\u0027, with the server not\u003cbr\u003esending a Hello Retry Request (HRR) even when a group in a more preferred tuple\u003cbr\u003ewas mutually supported.\u003cbr\u003e\u003cbr\u003eAs a result, the client and server might fail to negotiate a mutually supported\u003cbr\u003epost-quantum key agreement group, such as \u0027X25519MLKEM768\u0027, if the client\u0027s\u003cbr\u003econfiguration results in only \u0027classical\u0027 groups (such as \u0027X25519\u0027 being the\u003cbr\u003eonly ones in the client\u0027s initial keyshare prediction).\u003cbr\u003e\u003cbr\u003eOpenSSL 3.5 and later support a new syntax for selecting the most preferred TLS\u003cbr\u003e1.3 key agreement group on TLS servers. The old syntax had a single \u0027flat\u0027\u003cbr\u003elist of groups, and treated all the supported groups as sufficiently secure.\u003cbr\u003eIf any of the keyshares predicted by the client were supported by the server\u003cbr\u003ethe most preferred among these was selected, even if other groups supported by\u003cbr\u003ethe client, but not included in the list of predicted keyshares would have been\u003cbr\u003emore preferred, if included.\u003cbr\u003e\u003cbr\u003eThe new syntax partitions the groups into distinct \u0027tuples\u0027 of roughly\u003cbr\u003eequivalent security. Within each tuple the most preferred group included among\u003cbr\u003ethe client\u0027s predicted keyshares is chosen, but if the client supports a group\u003cbr\u003efrom a more preferred tuple, but did not predict any corresponding keyshares,\u003cbr\u003ethe server will ask the client to retry the ClientHello (by issuing a Hello\u003cbr\u003eRetry Request or HRR) with the most preferred mutually supported group.\u003cbr\u003e\u003cbr\u003eThe above works as expected when the server\u0027s configuration uses the built-in\u003cbr\u003edefault group list, or explicitly defines its own list by directly defining the\u003cbr\u003evarious desired groups and group \u0027tuples\u0027.\u003cbr\u003e\u003cbr\u003eNo OpenSSL FIPS modules are affected by this issue, the code in question lies\u003cbr\u003eoutside the FIPS boundary.\u003cbr\u003e\u003cbr\u003eOpenSSL 3.6 and 3.5 are vulnerable to this issue.\u003cbr\u003e\u003cbr\u003eOpenSSL 3.6 users should upgrade to OpenSSL 3.6.2 once it is released.\u003cbr\u003eOpenSSL 3.5 users should upgrade to OpenSSL 3.5.6 once it is released.\u003cbr\u003e\u003cbr\u003eOpenSSL 3.4, 3.3, 3.0, 1.0.2 and 1.1.1 are not affected by this issue."
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CVE-2025-69421 (GCVE-0-2025-69421)
Vulnerability from nvd – Published: 2026-01-27 16:01 – Updated: 2026-02-28 02:58
VLAI?
Title
NULL Pointer Dereference in PKCS12_item_decrypt_d2i_ex function
Summary
Issue summary: Processing a malformed PKCS#12 file can trigger a NULL pointer
dereference in the PKCS12_item_decrypt_d2i_ex() function.
Impact summary: A NULL pointer dereference can trigger a crash which leads to
Denial of Service for an application processing PKCS#12 files.
The PKCS12_item_decrypt_d2i_ex() function does not check whether the oct
parameter is NULL before dereferencing it. When called from
PKCS12_unpack_p7encdata() with a malformed PKCS#12 file, this parameter can
be NULL, causing a crash. The vulnerability is limited to Denial of Service
and cannot be escalated to achieve code execution or memory disclosure.
Exploiting this issue requires an attacker to provide a malformed PKCS#12 file
to an application that processes it. For that reason the issue was assessed as
Low severity according to our Security Policy.
The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,
as the PKCS#12 implementation is outside the OpenSSL FIPS module boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0, 1.1.1 and 1.0.2 are vulnerable to this issue.
Severity ?
No CVSS data available.
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Date Public ?
2026-01-27 14:00
Credits
Luigino Camastra (Aisle Research)
Luigino Camastra (Aisle Research)
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CVE-2025-11187 (GCVE-0-2025-11187)
Vulnerability from nvd – Published: 2026-01-27 15:59 – Updated: 2026-03-20 14:07
VLAI?
Title
Improper validation of PBMAC1 parameters in PKCS#12 MAC verification
Summary
Issue summary: PBMAC1 parameters in PKCS#12 files are missing validation
which can trigger a stack-based buffer overflow, invalid pointer or NULL
pointer dereference during MAC verification.
Impact summary: The stack buffer overflow or NULL pointer dereference may
cause a crash leading to Denial of Service for an application that parses
untrusted PKCS#12 files. The buffer overflow may also potentially enable
code execution depending on platform mitigations.
When verifying a PKCS#12 file that uses PBMAC1 for the MAC, the PBKDF2
salt and keylength parameters from the file are used without validation.
If the value of keylength exceeds the size of the fixed stack buffer used
for the derived key (64 bytes), the key derivation will overflow the buffer.
The overflow length is attacker-controlled. Also, if the salt parameter is
not an OCTET STRING type this can lead to invalid or NULL pointer
dereference.
Exploiting this issue requires a user or application to process
a maliciously crafted PKCS#12 file. It is uncommon to accept untrusted
PKCS#12 files in applications as they are usually used to store private
keys which are trusted by definition. For this reason the issue was assessed
as Moderate severity.
The FIPS modules in 3.6, 3.5 and 3.4 are not affected by this issue, as
PKCS#12 processing is outside the OpenSSL FIPS module boundary.
OpenSSL 3.6, 3.5 and 3.4 are vulnerable to this issue.
OpenSSL 3.3, 3.0, 1.1.1 and 1.0.2 are not affected by this issue as they do
not support PBMAC1 in PKCS#12.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Date Public ?
2026-01-27 14:00
Credits
Stanislav Fort (Aisle Research)
Petr Šimeček (Aisle Research)
Hamza (Metadust)
Tomáš Mráz
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CVE-2025-15467 (GCVE-0-2025-15467)
Vulnerability from nvd – Published: 2026-01-27 16:01 – Updated: 2026-03-20 03:55
VLAI?
Title
Stack buffer overflow in CMS (Auth)EnvelopedData parsing
Summary
Issue summary: Parsing CMS AuthEnvelopedData or EnvelopedData message with
maliciously crafted AEAD parameters can trigger a stack buffer overflow.
Impact summary: A stack buffer overflow may lead to a crash, causing Denial
of Service, or potentially remote code execution.
When parsing CMS (Auth)EnvelopedData structures that use AEAD ciphers such as
AES-GCM, the IV (Initialization Vector) encoded in the ASN.1 parameters is
copied into a fixed-size stack buffer without verifying that its length fits
the destination. An attacker can supply a crafted CMS message with an
oversized IV, causing a stack-based out-of-bounds write before any
authentication or tag verification occurs.
Applications and services that parse untrusted CMS or PKCS#7 content using
AEAD ciphers (e.g., S/MIME (Auth)EnvelopedData with AES-GCM) are vulnerable.
Because the overflow occurs prior to authentication, no valid key material
is required to trigger it. While exploitability to remote code execution
depends on platform and toolchain mitigations, the stack-based write
primitive represents a severe risk.
The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this
issue, as the CMS implementation is outside the OpenSSL FIPS module
boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3 and 3.0 are vulnerable to this issue.
OpenSSL 1.1.1 and 1.0.2 are not affected by this issue.
Severity ?
No CVSS data available.
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
| URL | Tags | |||||||||||||||||||
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Impacted products
Date Public ?
2026-01-27 14:00
Credits
Stanislav Fort (Aisle Research)
Igor Ustinov
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CVE-2026-22796 (GCVE-0-2026-22796)
Vulnerability from nvd – Published: 2026-01-27 16:01 – Updated: 2026-01-27 16:28
VLAI?
Title
ASN1_TYPE Type Confusion in the PKCS7_digest_from_attributes() function
Summary
Issue summary: A type confusion vulnerability exists in the signature
verification of signed PKCS#7 data where an ASN1_TYPE union member is
accessed without first validating the type, causing an invalid or NULL
pointer dereference when processing malformed PKCS#7 data.
Impact summary: An application performing signature verification of PKCS#7
data or calling directly the PKCS7_digest_from_attributes() function can be
caused to dereference an invalid or NULL pointer when reading, resulting in
a Denial of Service.
The function PKCS7_digest_from_attributes() accesses the message digest attribute
value without validating its type. When the type is not V_ASN1_OCTET_STRING,
this results in accessing invalid memory through the ASN1_TYPE union, causing
a crash.
Exploiting this vulnerability requires an attacker to provide a malformed
signed PKCS#7 to an application that verifies it. The impact of the
exploit is just a Denial of Service, the PKCS7 API is legacy and applications
should be using the CMS API instead. For these reasons the issue was
assessed as Low severity.
The FIPS modules in 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,
as the PKCS#7 parsing implementation is outside the OpenSSL FIPS module
boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0, 1.1.1 and 1.0.2 are vulnerable to this issue.
Severity ?
No CVSS data available.
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Impacted products
Date Public ?
2026-01-27 14:00
Credits
Luigino Camastra (Aisle Research)
Bob Beck
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CVE-2026-22795 (GCVE-0-2026-22795)
Vulnerability from nvd – Published: 2026-01-27 16:01 – Updated: 2026-01-29 18:13
VLAI?
Title
Missing ASN1_TYPE validation in PKCS#12 parsing
Summary
Issue summary: An invalid or NULL pointer dereference can happen in
an application processing a malformed PKCS#12 file.
Impact summary: An application processing a malformed PKCS#12 file can be
caused to dereference an invalid or NULL pointer on memory read, resulting
in a Denial of Service.
A type confusion vulnerability exists in PKCS#12 parsing code where
an ASN1_TYPE union member is accessed without first validating the type,
causing an invalid pointer read.
The location is constrained to a 1-byte address space, meaning any
attempted pointer manipulation can only target addresses between 0x00 and 0xFF.
This range corresponds to the zero page, which is unmapped on most modern
operating systems and will reliably result in a crash, leading only to a
Denial of Service. Exploiting this issue also requires a user or application
to process a maliciously crafted PKCS#12 file. It is uncommon to accept
untrusted PKCS#12 files in applications as they are usually used to store
private keys which are trusted by definition. For these reasons, the issue
was assessed as Low severity.
The FIPS modules in 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,
as the PKCS12 implementation is outside the OpenSSL FIPS module boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0 and 1.1.1 are vulnerable to this issue.
OpenSSL 1.0.2 is not affected by this issue.
Severity ?
No CVSS data available.
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
Date Public ?
2026-01-27 14:00
Credits
Luigino Camastra (Aisle Research)
Bob Beck
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CVE-2025-69420 (GCVE-0-2025-69420)
Vulnerability from nvd – Published: 2026-01-27 16:01 – Updated: 2026-01-28 19:33
VLAI?
Title
Missing ASN1_TYPE validation in TS_RESP_verify_response() function
Summary
Issue summary: A type confusion vulnerability exists in the TimeStamp Response
verification code where an ASN1_TYPE union member is accessed without first
validating the type, causing an invalid or NULL pointer dereference when
processing a malformed TimeStamp Response file.
Impact summary: An application calling TS_RESP_verify_response() with a
malformed TimeStamp Response can be caused to dereference an invalid or
NULL pointer when reading, resulting in a Denial of Service.
The functions ossl_ess_get_signing_cert() and ossl_ess_get_signing_cert_v2()
access the signing cert attribute value without validating its type.
When the type is not V_ASN1_SEQUENCE, this results in accessing invalid memory
through the ASN1_TYPE union, causing a crash.
Exploiting this vulnerability requires an attacker to provide a malformed
TimeStamp Response to an application that verifies timestamp responses. The
TimeStamp protocol (RFC 3161) is not widely used and the impact of the
exploit is just a Denial of Service. For these reasons the issue was
assessed as Low severity.
The FIPS modules in 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,
as the TimeStamp Response implementation is outside the OpenSSL FIPS module
boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0 and 1.1.1 are vulnerable to this issue.
OpenSSL 1.0.2 is not affected by this issue.
Severity ?
No CVSS data available.
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
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| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
Date Public ?
2026-01-27 14:00
Credits
Luigino Camastra (Aisle Research)
Bob Beck
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CVE-2025-69419 (GCVE-0-2025-69419)
Vulnerability from nvd – Published: 2026-01-27 16:01 – Updated: 2026-01-29 15:09
VLAI?
Title
Out of bounds write in PKCS12_get_friendlyname() UTF-8 conversion
Summary
Issue summary: Calling PKCS12_get_friendlyname() function on a maliciously
crafted PKCS#12 file with a BMPString (UTF-16BE) friendly name containing
non-ASCII BMP code point can trigger a one byte write before the allocated
buffer.
Impact summary: The out-of-bounds write can cause a memory corruption
which can have various consequences including a Denial of Service.
The OPENSSL_uni2utf8() function performs a two-pass conversion of a PKCS#12
BMPString (UTF-16BE) to UTF-8. In the second pass, when emitting UTF-8 bytes,
the helper function bmp_to_utf8() incorrectly forwards the remaining UTF-16
source byte count as the destination buffer capacity to UTF8_putc(). For BMP
code points above U+07FF, UTF-8 requires three bytes, but the forwarded
capacity can be just two bytes. UTF8_putc() then returns -1, and this negative
value is added to the output length without validation, causing the
length to become negative. The subsequent trailing NUL byte is then written
at a negative offset, causing write outside of heap allocated buffer.
The vulnerability is reachable via the public PKCS12_get_friendlyname() API
when parsing attacker-controlled PKCS#12 files. While PKCS12_parse() uses a
different code path that avoids this issue, PKCS12_get_friendlyname() directly
invokes the vulnerable function. Exploitation requires an attacker to provide
a malicious PKCS#12 file to be parsed by the application and the attacker
can just trigger a one zero byte write before the allocated buffer.
For that reason the issue was assessed as Low severity according to our
Security Policy.
The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,
as the PKCS#12 implementation is outside the OpenSSL FIPS module boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0 and 1.1.1 are vulnerable to this issue.
OpenSSL 1.0.2 is not affected by this issue.
Severity ?
No CVSS data available.
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
Date Public ?
2026-01-27 14:00
Credits
Stanislav Fort (Aisle Research)
Norbert Pócs
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CVE-2026-2673 (GCVE-0-2026-2673)
Vulnerability from cvelistv5 – Published: 2026-03-13 13:23 – Updated: 2026-03-17 17:18
VLAI?
Title
OpenSSL TLS 1.3 server may choose unexpected key agreement group
Summary
Issue summary: An OpenSSL TLS 1.3 server may fail to negotiate the expected
preferred key exchange group when its key exchange group configuration includes
the default by using the 'DEFAULT' keyword.
Impact summary: A less preferred key exchange may be used even when a more
preferred group is supported by both client and server, if the group
was not included among the client's initial predicated keyshares.
This will sometimes be the case with the new hybrid post-quantum groups,
if the client chooses to defer their use until specifically requested by
the server.
If an OpenSSL TLS 1.3 server's configuration uses the 'DEFAULT' keyword to
interpolate the built-in default group list into its own configuration, perhaps
adding or removing specific elements, then an implementation defect causes the
'DEFAULT' list to lose its 'tuple' structure, and all server-supported groups
were treated as a single sufficiently secure 'tuple', with the server not
sending a Hello Retry Request (HRR) even when a group in a more preferred tuple
was mutually supported.
As a result, the client and server might fail to negotiate a mutually supported
post-quantum key agreement group, such as 'X25519MLKEM768', if the client's
configuration results in only 'classical' groups (such as 'X25519' being the
only ones in the client's initial keyshare prediction).
OpenSSL 3.5 and later support a new syntax for selecting the most preferred TLS
1.3 key agreement group on TLS servers. The old syntax had a single 'flat'
list of groups, and treated all the supported groups as sufficiently secure.
If any of the keyshares predicted by the client were supported by the server
the most preferred among these was selected, even if other groups supported by
the client, but not included in the list of predicted keyshares would have been
more preferred, if included.
The new syntax partitions the groups into distinct 'tuples' of roughly
equivalent security. Within each tuple the most preferred group included among
the client's predicted keyshares is chosen, but if the client supports a group
from a more preferred tuple, but did not predict any corresponding keyshares,
the server will ask the client to retry the ClientHello (by issuing a Hello
Retry Request or HRR) with the most preferred mutually supported group.
The above works as expected when the server's configuration uses the built-in
default group list, or explicitly defines its own list by directly defining the
various desired groups and group 'tuples'.
No OpenSSL FIPS modules are affected by this issue, the code in question lies
outside the FIPS boundary.
OpenSSL 3.6 and 3.5 are vulnerable to this issue.
OpenSSL 3.6 users should upgrade to OpenSSL 3.6.2 once it is released.
OpenSSL 3.5 users should upgrade to OpenSSL 3.5.6 once it is released.
OpenSSL 3.4, 3.3, 3.0, 1.0.2 and 1.1.1 are not affected by this issue.
Severity ?
No CVSS data available.
CWE
- CWE-757 - Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')
Assigner
References
| URL | Tags | |
|---|---|---|
Impacted products
Date Public ?
2026-03-13 14:00
Credits
Viktor Dukhovni
Viktor Dukhovni
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CVE-2026-22796 (GCVE-0-2026-22796)
Vulnerability from cvelistv5 – Published: 2026-01-27 16:01 – Updated: 2026-01-27 16:28
VLAI?
Title
ASN1_TYPE Type Confusion in the PKCS7_digest_from_attributes() function
Summary
Issue summary: A type confusion vulnerability exists in the signature
verification of signed PKCS#7 data where an ASN1_TYPE union member is
accessed without first validating the type, causing an invalid or NULL
pointer dereference when processing malformed PKCS#7 data.
Impact summary: An application performing signature verification of PKCS#7
data or calling directly the PKCS7_digest_from_attributes() function can be
caused to dereference an invalid or NULL pointer when reading, resulting in
a Denial of Service.
The function PKCS7_digest_from_attributes() accesses the message digest attribute
value without validating its type. When the type is not V_ASN1_OCTET_STRING,
this results in accessing invalid memory through the ASN1_TYPE union, causing
a crash.
Exploiting this vulnerability requires an attacker to provide a malformed
signed PKCS#7 to an application that verifies it. The impact of the
exploit is just a Denial of Service, the PKCS7 API is legacy and applications
should be using the CMS API instead. For these reasons the issue was
assessed as Low severity.
The FIPS modules in 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,
as the PKCS#7 parsing implementation is outside the OpenSSL FIPS module
boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0, 1.1.1 and 1.0.2 are vulnerable to this issue.
Severity ?
No CVSS data available.
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
Date Public ?
2026-01-27 14:00
Credits
Luigino Camastra (Aisle Research)
Bob Beck
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CVE-2026-22795 (GCVE-0-2026-22795)
Vulnerability from cvelistv5 – Published: 2026-01-27 16:01 – Updated: 2026-01-29 18:13
VLAI?
Title
Missing ASN1_TYPE validation in PKCS#12 parsing
Summary
Issue summary: An invalid or NULL pointer dereference can happen in
an application processing a malformed PKCS#12 file.
Impact summary: An application processing a malformed PKCS#12 file can be
caused to dereference an invalid or NULL pointer on memory read, resulting
in a Denial of Service.
A type confusion vulnerability exists in PKCS#12 parsing code where
an ASN1_TYPE union member is accessed without first validating the type,
causing an invalid pointer read.
The location is constrained to a 1-byte address space, meaning any
attempted pointer manipulation can only target addresses between 0x00 and 0xFF.
This range corresponds to the zero page, which is unmapped on most modern
operating systems and will reliably result in a crash, leading only to a
Denial of Service. Exploiting this issue also requires a user or application
to process a maliciously crafted PKCS#12 file. It is uncommon to accept
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OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0 and 1.1.1 are vulnerable to this issue.
OpenSSL 1.0.2 is not affected by this issue.
Severity ?
No CVSS data available.
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
Date Public ?
2026-01-27 14:00
Credits
Luigino Camastra (Aisle Research)
Bob Beck
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CVE-2025-69421 (GCVE-0-2025-69421)
Vulnerability from cvelistv5 – Published: 2026-01-27 16:01 – Updated: 2026-02-28 02:58
VLAI?
Title
NULL Pointer Dereference in PKCS12_item_decrypt_d2i_ex function
Summary
Issue summary: Processing a malformed PKCS#12 file can trigger a NULL pointer
dereference in the PKCS12_item_decrypt_d2i_ex() function.
Impact summary: A NULL pointer dereference can trigger a crash which leads to
Denial of Service for an application processing PKCS#12 files.
The PKCS12_item_decrypt_d2i_ex() function does not check whether the oct
parameter is NULL before dereferencing it. When called from
PKCS12_unpack_p7encdata() with a malformed PKCS#12 file, this parameter can
be NULL, causing a crash. The vulnerability is limited to Denial of Service
and cannot be escalated to achieve code execution or memory disclosure.
Exploiting this issue requires an attacker to provide a malformed PKCS#12 file
to an application that processes it. For that reason the issue was assessed as
Low severity according to our Security Policy.
The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,
as the PKCS#12 implementation is outside the OpenSSL FIPS module boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0, 1.1.1 and 1.0.2 are vulnerable to this issue.
Severity ?
No CVSS data available.
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
Date Public ?
2026-01-27 14:00
Credits
Luigino Camastra (Aisle Research)
Luigino Camastra (Aisle Research)
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CVE-2025-69420 (GCVE-0-2025-69420)
Vulnerability from cvelistv5 – Published: 2026-01-27 16:01 – Updated: 2026-01-28 19:33
VLAI?
Title
Missing ASN1_TYPE validation in TS_RESP_verify_response() function
Summary
Issue summary: A type confusion vulnerability exists in the TimeStamp Response
verification code where an ASN1_TYPE union member is accessed without first
validating the type, causing an invalid or NULL pointer dereference when
processing a malformed TimeStamp Response file.
Impact summary: An application calling TS_RESP_verify_response() with a
malformed TimeStamp Response can be caused to dereference an invalid or
NULL pointer when reading, resulting in a Denial of Service.
The functions ossl_ess_get_signing_cert() and ossl_ess_get_signing_cert_v2()
access the signing cert attribute value without validating its type.
When the type is not V_ASN1_SEQUENCE, this results in accessing invalid memory
through the ASN1_TYPE union, causing a crash.
Exploiting this vulnerability requires an attacker to provide a malformed
TimeStamp Response to an application that verifies timestamp responses. The
TimeStamp protocol (RFC 3161) is not widely used and the impact of the
exploit is just a Denial of Service. For these reasons the issue was
assessed as Low severity.
The FIPS modules in 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,
as the TimeStamp Response implementation is outside the OpenSSL FIPS module
boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0 and 1.1.1 are vulnerable to this issue.
OpenSSL 1.0.2 is not affected by this issue.
Severity ?
No CVSS data available.
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
Date Public ?
2026-01-27 14:00
Credits
Luigino Camastra (Aisle Research)
Bob Beck
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CVE-2025-69419 (GCVE-0-2025-69419)
Vulnerability from cvelistv5 – Published: 2026-01-27 16:01 – Updated: 2026-01-29 15:09
VLAI?
Title
Out of bounds write in PKCS12_get_friendlyname() UTF-8 conversion
Summary
Issue summary: Calling PKCS12_get_friendlyname() function on a maliciously
crafted PKCS#12 file with a BMPString (UTF-16BE) friendly name containing
non-ASCII BMP code point can trigger a one byte write before the allocated
buffer.
Impact summary: The out-of-bounds write can cause a memory corruption
which can have various consequences including a Denial of Service.
The OPENSSL_uni2utf8() function performs a two-pass conversion of a PKCS#12
BMPString (UTF-16BE) to UTF-8. In the second pass, when emitting UTF-8 bytes,
the helper function bmp_to_utf8() incorrectly forwards the remaining UTF-16
source byte count as the destination buffer capacity to UTF8_putc(). For BMP
code points above U+07FF, UTF-8 requires three bytes, but the forwarded
capacity can be just two bytes. UTF8_putc() then returns -1, and this negative
value is added to the output length without validation, causing the
length to become negative. The subsequent trailing NUL byte is then written
at a negative offset, causing write outside of heap allocated buffer.
The vulnerability is reachable via the public PKCS12_get_friendlyname() API
when parsing attacker-controlled PKCS#12 files. While PKCS12_parse() uses a
different code path that avoids this issue, PKCS12_get_friendlyname() directly
invokes the vulnerable function. Exploitation requires an attacker to provide
a malicious PKCS#12 file to be parsed by the application and the attacker
can just trigger a one zero byte write before the allocated buffer.
For that reason the issue was assessed as Low severity according to our
Security Policy.
The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,
as the PKCS#12 implementation is outside the OpenSSL FIPS module boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0 and 1.1.1 are vulnerable to this issue.
OpenSSL 1.0.2 is not affected by this issue.
Severity ?
No CVSS data available.
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
Date Public ?
2026-01-27 14:00
Credits
Stanislav Fort (Aisle Research)
Norbert Pócs
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CVE-2025-68160 (GCVE-0-2025-68160)
Vulnerability from cvelistv5 – Published: 2026-01-27 16:01 – Updated: 2026-01-29 15:06
VLAI?
Title
Heap out-of-bounds write in BIO_f_linebuffer on short writes
Summary
Issue summary: Writing large, newline-free data into a BIO chain using the
line-buffering filter where the next BIO performs short writes can trigger
a heap-based out-of-bounds write.
Impact summary: This out-of-bounds write can cause memory corruption which
typically results in a crash, leading to Denial of Service for an application.
The line-buffering BIO filter (BIO_f_linebuffer) is not used by default in
TLS/SSL data paths. In OpenSSL command-line applications, it is typically
only pushed onto stdout/stderr on VMS systems. Third-party applications that
explicitly use this filter with a BIO chain that can short-write and that
write large, newline-free data influenced by an attacker would be affected.
However, the circumstances where this could happen are unlikely to be under
attacker control, and BIO_f_linebuffer is unlikely to be handling non-curated
data controlled by an attacker. For that reason the issue was assessed as
Low severity.
The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,
as the BIO implementation is outside the OpenSSL FIPS module boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0, 1.1.1 and 1.0.2 are vulnerable to this issue.
Severity ?
No CVSS data available.
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
Date Public ?
2026-01-27 14:00
Credits
Petr Šimeček (Aisle Research)
Stanislav Fort (Aisle Research)
Stanislav Fort (Aisle Research)
Neil Horman
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FKIE_CVE-2026-22795
Vulnerability from fkie_nvd - Published: 2026-01-27 16:16 - Updated: 2026-02-02 18:41
Severity ?
Summary
Issue summary: An invalid or NULL pointer dereference can happen in
an application processing a malformed PKCS#12 file.
Impact summary: An application processing a malformed PKCS#12 file can be
caused to dereference an invalid or NULL pointer on memory read, resulting
in a Denial of Service.
A type confusion vulnerability exists in PKCS#12 parsing code where
an ASN1_TYPE union member is accessed without first validating the type,
causing an invalid pointer read.
The location is constrained to a 1-byte address space, meaning any
attempted pointer manipulation can only target addresses between 0x00 and 0xFF.
This range corresponds to the zero page, which is unmapped on most modern
operating systems and will reliably result in a crash, leading only to a
Denial of Service. Exploiting this issue also requires a user or application
to process a maliciously crafted PKCS#12 file. It is uncommon to accept
untrusted PKCS#12 files in applications as they are usually used to store
private keys which are trusted by definition. For these reasons, the issue
was assessed as Low severity.
The FIPS modules in 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,
as the PKCS12 implementation is outside the OpenSSL FIPS module boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0 and 1.1.1 are vulnerable to this issue.
OpenSSL 1.0.2 is not affected by this issue.
References
| URL | Tags | ||
|---|---|---|---|
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/2502e7b7d4c0cf4f972a881641fe09edc67aeec4 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/572844beca95068394c916626a6d3a490f831a49 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/7bbca05be55b129651d9df4bdb92becc45002c12 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/eeee3cbd4d682095ed431052f00403004596373e | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/ef2fb66ec571564d64d1c74a12e388a2a54d05d2 | Patch | |
| openssl-security@openssl.org | https://openssl-library.org/news/secadv/20260127.txt | Vendor Advisory |
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FKIE_CVE-2026-22796
Vulnerability from fkie_nvd - Published: 2026-01-27 16:16 - Updated: 2026-02-02 18:40
Severity ?
Summary
Issue summary: A type confusion vulnerability exists in the signature
verification of signed PKCS#7 data where an ASN1_TYPE union member is
accessed without first validating the type, causing an invalid or NULL
pointer dereference when processing malformed PKCS#7 data.
Impact summary: An application performing signature verification of PKCS#7
data or calling directly the PKCS7_digest_from_attributes() function can be
caused to dereference an invalid or NULL pointer when reading, resulting in
a Denial of Service.
The function PKCS7_digest_from_attributes() accesses the message digest attribute
value without validating its type. When the type is not V_ASN1_OCTET_STRING,
this results in accessing invalid memory through the ASN1_TYPE union, causing
a crash.
Exploiting this vulnerability requires an attacker to provide a malformed
signed PKCS#7 to an application that verifies it. The impact of the
exploit is just a Denial of Service, the PKCS7 API is legacy and applications
should be using the CMS API instead. For these reasons the issue was
assessed as Low severity.
The FIPS modules in 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,
as the PKCS#7 parsing implementation is outside the OpenSSL FIPS module
boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0, 1.1.1 and 1.0.2 are vulnerable to this issue.
References
| URL | Tags | ||
|---|---|---|---|
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/2502e7b7d4c0cf4f972a881641fe09edc67aeec4 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/572844beca95068394c916626a6d3a490f831a49 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/7bbca05be55b129651d9df4bdb92becc45002c12 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/eeee3cbd4d682095ed431052f00403004596373e | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/ef2fb66ec571564d64d1c74a12e388a2a54d05d2 | Patch | |
| openssl-security@openssl.org | https://openssl-library.org/news/secadv/20260127.txt | Vendor Advisory |
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}
FKIE_CVE-2025-69420
Vulnerability from fkie_nvd - Published: 2026-01-27 16:16 - Updated: 2026-02-02 18:33
Severity ?
Summary
Issue summary: A type confusion vulnerability exists in the TimeStamp Response
verification code where an ASN1_TYPE union member is accessed without first
validating the type, causing an invalid or NULL pointer dereference when
processing a malformed TimeStamp Response file.
Impact summary: An application calling TS_RESP_verify_response() with a
malformed TimeStamp Response can be caused to dereference an invalid or
NULL pointer when reading, resulting in a Denial of Service.
The functions ossl_ess_get_signing_cert() and ossl_ess_get_signing_cert_v2()
access the signing cert attribute value without validating its type.
When the type is not V_ASN1_SEQUENCE, this results in accessing invalid memory
through the ASN1_TYPE union, causing a crash.
Exploiting this vulnerability requires an attacker to provide a malformed
TimeStamp Response to an application that verifies timestamp responses. The
TimeStamp protocol (RFC 3161) is not widely used and the impact of the
exploit is just a Denial of Service. For these reasons the issue was
assessed as Low severity.
The FIPS modules in 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,
as the TimeStamp Response implementation is outside the OpenSSL FIPS module
boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0 and 1.1.1 are vulnerable to this issue.
OpenSSL 1.0.2 is not affected by this issue.
References
| URL | Tags | ||
|---|---|---|---|
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/27c7012c91cc986a598d7540f3079dfde2416eb9 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/4e254b48ad93cc092be3dd62d97015f33f73133a | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/564fd9c73787f25693bf9e75faf7bf6bb1305d4e | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/5eb0770ffcf11b785cf374ff3c19196245e54f1b | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/a99349ebfc519999edc50620abe24d599b9eb085 | Patch | |
| openssl-security@openssl.org | https://openssl-library.org/news/secadv/20260127.txt | Vendor Advisory |
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FKIE_CVE-2025-69419
Vulnerability from fkie_nvd - Published: 2026-01-27 16:16 - Updated: 2026-02-02 18:35
Severity ?
Summary
Issue summary: Calling PKCS12_get_friendlyname() function on a maliciously
crafted PKCS#12 file with a BMPString (UTF-16BE) friendly name containing
non-ASCII BMP code point can trigger a one byte write before the allocated
buffer.
Impact summary: The out-of-bounds write can cause a memory corruption
which can have various consequences including a Denial of Service.
The OPENSSL_uni2utf8() function performs a two-pass conversion of a PKCS#12
BMPString (UTF-16BE) to UTF-8. In the second pass, when emitting UTF-8 bytes,
the helper function bmp_to_utf8() incorrectly forwards the remaining UTF-16
source byte count as the destination buffer capacity to UTF8_putc(). For BMP
code points above U+07FF, UTF-8 requires three bytes, but the forwarded
capacity can be just two bytes. UTF8_putc() then returns -1, and this negative
value is added to the output length without validation, causing the
length to become negative. The subsequent trailing NUL byte is then written
at a negative offset, causing write outside of heap allocated buffer.
The vulnerability is reachable via the public PKCS12_get_friendlyname() API
when parsing attacker-controlled PKCS#12 files. While PKCS12_parse() uses a
different code path that avoids this issue, PKCS12_get_friendlyname() directly
invokes the vulnerable function. Exploitation requires an attacker to provide
a malicious PKCS#12 file to be parsed by the application and the attacker
can just trigger a one zero byte write before the allocated buffer.
For that reason the issue was assessed as Low severity according to our
Security Policy.
The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,
as the PKCS#12 implementation is outside the OpenSSL FIPS module boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0 and 1.1.1 are vulnerable to this issue.
OpenSSL 1.0.2 is not affected by this issue.
References
| URL | Tags | ||
|---|---|---|---|
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/41be0f216404f14457bbf3b9cc488dba60b49296 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/7e9cac9832e4705b91987c2474ed06a37a93cecb | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/a26a90d38edec3748566129d824e664b54bee2e2 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/cda12de3bc0e333ea8d2c6fd15001dbdaf280015 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/ff628933755075446bca8307e8417c14d164b535 | Patch | |
| openssl-security@openssl.org | https://openssl-library.org/news/secadv/20260127.txt | Vendor Advisory |
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"lastModified": "2026-02-02T18:35:02.177",
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FKIE_CVE-2025-69421
Vulnerability from fkie_nvd - Published: 2026-01-27 16:16 - Updated: 2026-02-28 04:16
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Issue summary: Processing a malformed PKCS#12 file can trigger a NULL pointer
dereference in the PKCS12_item_decrypt_d2i_ex() function.
Impact summary: A NULL pointer dereference can trigger a crash which leads to
Denial of Service for an application processing PKCS#12 files.
The PKCS12_item_decrypt_d2i_ex() function does not check whether the oct
parameter is NULL before dereferencing it. When called from
PKCS12_unpack_p7encdata() with a malformed PKCS#12 file, this parameter can
be NULL, causing a crash. The vulnerability is limited to Denial of Service
and cannot be escalated to achieve code execution or memory disclosure.
Exploiting this issue requires an attacker to provide a malformed PKCS#12 file
to an application that processes it. For that reason the issue was assessed as
Low severity according to our Security Policy.
The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,
as the PKCS#12 implementation is outside the OpenSSL FIPS module boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0, 1.1.1 and 1.0.2 are vulnerable to this issue.
References
| URL | Tags | ||
|---|---|---|---|
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/3524a29271f8191b8fd8a5257eb05173982a097b | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/36ecb4960872a4ce04bf6f1e1f4e78d75ec0c0c7 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/4bbc8d41a72c842ce4077a8a3eccd1109aaf74bd | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/643986985cd1c21221f941129d76fe0c2785aeb3 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/a2dbc539f0f9cc63832709fa5aa33ad9495eb19c | Patch | |
| openssl-security@openssl.org | https://openssl-library.org/news/secadv/20260127.txt | Vendor Advisory |
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"value": "Issue summary: Processing a malformed PKCS#12 file can trigger a NULL pointer\ndereference in the PKCS12_item_decrypt_d2i_ex() function.\n\nImpact summary: A NULL pointer dereference can trigger a crash which leads to\nDenial of Service for an application processing PKCS#12 files.\n\nThe PKCS12_item_decrypt_d2i_ex() function does not check whether the oct\nparameter is NULL before dereferencing it. When called from\nPKCS12_unpack_p7encdata() with a malformed PKCS#12 file, this parameter can\nbe NULL, causing a crash. The vulnerability is limited to Denial of Service\nand cannot be escalated to achieve code execution or memory disclosure.\n\nExploiting this issue requires an attacker to provide a malformed PKCS#12 file\nto an application that processes it. For that reason the issue was assessed as\nLow severity according to our Security Policy.\n\nThe FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,\nas the PKCS#12 implementation is outside the OpenSSL FIPS module boundary.\n\nOpenSSL 3.6, 3.5, 3.4, 3.3, 3.0, 1.1.1 and 1.0.2 are vulnerable to this issue."
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"lang": "es",
"value": "Resumen del problema: Procesar un archivo PKCS#12 malformado puede desencadenar una desreferencia de puntero NULL en la funci\u00f3n PKCS12_item_decrypt_d2i_ex().\n\nResumen del impacto: Una desreferencia de puntero NULL puede desencadenar un fallo que lleva a la denegaci\u00f3n de servicio para una aplicaci\u00f3n que procesa archivos PKCS#12.\n\nLa funci\u00f3n PKCS12_item_decrypt_d2i_ex() no comprueba si el par\u00e1metro oct es NULL antes de desreferenciarlo. Cuando se llama desde PKCS12_unpack_p7encdata() con un archivo PKCS#12 malformado, este par\u00e1metro puede ser NULL, causando un fallo. La vulnerabilidad est\u00e1 limitada a la denegaci\u00f3n de servicio y no puede ser escalada para lograr la ejecuci\u00f3n de c\u00f3digo o la divulgaci\u00f3n de memoria.\n\nExplotar este problema requiere que un atacante proporcione un archivo PKCS#12 malformado a una aplicaci\u00f3n que lo procesa. Por esa raz\u00f3n, el problema fue evaluado como de baja severidad seg\u00fan nuestra Pol\u00edtica de Seguridad.\n\nLos m\u00f3dulos FIPS en 3.6, 3.5, 3.4, 3.3 y 3.0 no se ven afectados por este problema, ya que la implementaci\u00f3n de PKCS#12 est\u00e1 fuera del l\u00edmite del m\u00f3dulo FIPS de OpenSSL.\n\nOpenSSL 3.6, 3.5, 3.4, 3.3, 3.0, 1.1.1 y 1.0.2 son vulnerables a este problema."
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"id": "CVE-2025-69421",
"lastModified": "2026-02-28T04:16:17.457",
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FKIE_CVE-2025-69418
Vulnerability from fkie_nvd - Published: 2026-01-27 16:16 - Updated: 2026-02-02 18:36
Severity ?
Summary
Issue summary: When using the low-level OCB API directly with AES-NI or<br>other hardware-accelerated code paths, inputs whose length is not a multiple<br>of 16 bytes can leave the final partial block unencrypted and unauthenticated.<br><br>Impact summary: The trailing 1-15 bytes of a message may be exposed in<br>cleartext on encryption and are not covered by the authentication tag,<br>allowing an attacker to read or tamper with those bytes without detection.<br><br>The low-level OCB encrypt and decrypt routines in the hardware-accelerated<br>stream path process full 16-byte blocks but do not advance the input/output<br>pointers. The subsequent tail-handling code then operates on the original<br>base pointers, effectively reprocessing the beginning of the buffer while<br>leaving the actual trailing bytes unprocessed. The authentication checksum<br>also excludes the true tail bytes.<br><br>However, typical OpenSSL consumers using EVP are not affected because the<br>higher-level EVP and provider OCB implementations split inputs so that full<br>blocks and trailing partial blocks are processed in separate calls, avoiding<br>the problematic code path. Additionally, TLS does not use OCB ciphersuites.<br>The vulnerability only affects applications that call the low-level<br>CRYPTO_ocb128_encrypt() or CRYPTO_ocb128_decrypt() functions directly with<br>non-block-aligned lengths in a single call on hardware-accelerated builds.<br>For these reasons the issue was assessed as Low severity.<br><br>The FIPS modules in 3.6, 3.5, 3.4, 3.3, 3.2, 3.1 and 3.0 are not affected<br>by this issue, as OCB mode is not a FIPS-approved algorithm.<br><br>OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0 and 1.1.1 are vulnerable to this issue.<br><br>OpenSSL 1.0.2 is not affected by this issue.
References
| URL | Tags | ||
|---|---|---|---|
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/372fc5c77529695b05b4f5b5187691a57ef5dffc | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/4016975d4469cd6b94927c607f7c511385f928d8 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/52d23c86a54adab5ee9f80e48b242b52c4cc2347 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/a7589230356d908c0eca4b969ec4f62106f4f5ae | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/ed40856d7d4ba6cb42779b6770666a65f19cb977 | Patch | |
| openssl-security@openssl.org | https://openssl-library.org/news/secadv/20260127.txt | Vendor Advisory |
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FKIE_CVE-2025-66199
Vulnerability from fkie_nvd - Published: 2026-01-27 16:16 - Updated: 2026-02-02 18:37
Severity ?
Summary
Issue summary: A TLS 1.3 connection using certificate compression can be
forced to allocate a large buffer before decompression without checking
against the configured certificate size limit.
Impact summary: An attacker can cause per-connection memory allocations of
up to approximately 22 MiB and extra CPU work, potentially leading to
service degradation or resource exhaustion (Denial of Service).
In affected configurations, the peer-supplied uncompressed certificate
length from a CompressedCertificate message is used to grow a heap buffer
prior to decompression. This length is not bounded by the max_cert_list
setting, which otherwise constrains certificate message sizes. An attacker
can exploit this to cause large per-connection allocations followed by
handshake failure. No memory corruption or information disclosure occurs.
This issue only affects builds where TLS 1.3 certificate compression is
compiled in (i.e., not OPENSSL_NO_COMP_ALG) and at least one compression
algorithm (brotli, zlib, or zstd) is available, and where the compression
extension is negotiated. Both clients receiving a server CompressedCertificate
and servers in mutual TLS scenarios receiving a client CompressedCertificate
are affected. Servers that do not request client certificates are not
vulnerable to client-initiated attacks.
Users can mitigate this issue by setting SSL_OP_NO_RX_CERTIFICATE_COMPRESSION
to disable receiving compressed certificates.
The FIPS modules in 3.6, 3.5, 3.4 and 3.3 are not affected by this issue,
as the TLS implementation is outside the OpenSSL FIPS module boundary.
OpenSSL 3.6, 3.5, 3.4 and 3.3 are vulnerable to this issue.
OpenSSL 3.0, 1.1.1 and 1.0.2 are not affected by this issue.
References
| URL | Tags | ||
|---|---|---|---|
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/3ed1f75249932b155eef993a8e66a99cb98bfef4 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/6184a4fb08ee6d7bca570d931a4e8bef40b64451 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/895150b5e021d16b52fb32b97e1dd12f20448be5 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/966a2478046c311ed7dae50c457d0db4cafbf7e4 | Patch | |
| openssl-security@openssl.org | https://openssl-library.org/news/secadv/20260127.txt | Vendor Advisory |
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"value": "Issue summary: A TLS 1.3 connection using certificate compression can be\nforced to allocate a large buffer before decompression without checking\nagainst the configured certificate size limit.\n\nImpact summary: An attacker can cause per-connection memory allocations of\nup to approximately 22 MiB and extra CPU work, potentially leading to\nservice degradation or resource exhaustion (Denial of Service).\n\nIn affected configurations, the peer-supplied uncompressed certificate\nlength from a CompressedCertificate message is used to grow a heap buffer\nprior to decompression. This length is not bounded by the max_cert_list\nsetting, which otherwise constrains certificate message sizes. An attacker\ncan exploit this to cause large per-connection allocations followed by\nhandshake failure. No memory corruption or information disclosure occurs.\n\nThis issue only affects builds where TLS 1.3 certificate compression is\ncompiled in (i.e., not OPENSSL_NO_COMP_ALG) and at least one compression\nalgorithm (brotli, zlib, or zstd) is available, and where the compression\nextension is negotiated. Both clients receiving a server CompressedCertificate\nand servers in mutual TLS scenarios receiving a client CompressedCertificate\nare affected. Servers that do not request client certificates are not\nvulnerable to client-initiated attacks.\n\nUsers can mitigate this issue by setting SSL_OP_NO_RX_CERTIFICATE_COMPRESSION\nto disable receiving compressed certificates.\n\nThe FIPS modules in 3.6, 3.5, 3.4 and 3.3 are not affected by this issue,\nas the TLS implementation is outside the OpenSSL FIPS module boundary.\n\nOpenSSL 3.6, 3.5, 3.4 and 3.3 are vulnerable to this issue.\n\nOpenSSL 3.0, 1.1.1 and 1.0.2 are not affected by this issue."
},
{
"lang": "es",
"value": "Resumen del problema: Una conexi\u00f3n TLS 1.3 que utiliza compresi\u00f3n de certificados puede ser forzada a asignar un b\u00fafer grande antes de la descompresi\u00f3n sin verificar contra el l\u00edmite de tama\u00f1o de certificado configurado.\n\nResumen del impacto: Un atacante puede causar asignaciones de memoria por conexi\u00f3n de hasta aproximadamente 22 MiB y trabajo adicional de CPU, lo que podr\u00eda llevar a degradaci\u00f3n del servicio o agotamiento de recursos (denegaci\u00f3n de servicio).\n\nEn configuraciones afectadas, la longitud del certificado sin comprimir proporcionada por el par de un mensaje CompressedCertificate se utiliza para aumentar un b\u00fafer de pila antes de la descompresi\u00f3n. Esta longitud no est\u00e1 limitada por la configuraci\u00f3n max_cert_list, que de otro modo restringe los tama\u00f1os de los mensajes de certificado. Un atacante puede explotar esto para causar grandes asignaciones por conexi\u00f3n seguidas de un fallo en el handshake. No ocurre corrupci\u00f3n de memoria ni revelaci\u00f3n de informaci\u00f3n.\n\nEste problema solo afecta a las compilaciones donde la compresi\u00f3n de certificados TLS 1.3 est\u00e1 compilada (es decir, no OPENSSL_NO_COMP_ALG) y al menos un algoritmo de compresi\u00f3n (brotli, zlib o zstd) est\u00e1 disponible, y donde la extensi\u00f3n de compresi\u00f3n es negociada. Tanto los clientes que reciben un CompressedCertificate del servidor como los servidores en escenarios TLS mutuos que reciben un CompressedCertificate del cliente se ven afectados. Los servidores que no solicitan certificados de cliente no son vulnerables a ataques iniciados por el cliente.\n\nLos usuarios pueden mitigar este problema configurando SSL_OP_NO_RX_CERTIFICATE_COMPRESSION para deshabilitar la recepci\u00f3n de certificados comprimidos.\n\nLos m\u00f3dulos FIPS en 3.6, 3.5, 3.4 y 3.3 no se ven afectados por este problema, ya que la implementaci\u00f3n de TLS est\u00e1 fuera del l\u00edmite del m\u00f3dulo FIPS de OpenSSL.\n\nOpenSSL 3.6, 3.5, 3.4 y 3.3 son vulnerables a este problema.\n\nOpenSSL 3.0, 1.1.1 y 1.0.2 no se ven afectados por este problema."
}
],
"id": "CVE-2025-66199",
"lastModified": "2026-02-02T18:37:19.613",
"metrics": {
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"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
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"baseScore": 5.9,
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"published": "2026-01-27T16:16:15.777",
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{
"source": "openssl-security@openssl.org",
"tags": [
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"url": "https://github.com/openssl/openssl/commit/3ed1f75249932b155eef993a8e66a99cb98bfef4"
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"tags": [
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"vulnStatus": "Analyzed",
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"value": "CWE-789"
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]
}
FKIE_CVE-2025-68160
Vulnerability from fkie_nvd - Published: 2026-01-27 16:16 - Updated: 2026-02-02 18:36
Severity ?
Summary
Issue summary: Writing large, newline-free data into a BIO chain using the
line-buffering filter where the next BIO performs short writes can trigger
a heap-based out-of-bounds write.
Impact summary: This out-of-bounds write can cause memory corruption which
typically results in a crash, leading to Denial of Service for an application.
The line-buffering BIO filter (BIO_f_linebuffer) is not used by default in
TLS/SSL data paths. In OpenSSL command-line applications, it is typically
only pushed onto stdout/stderr on VMS systems. Third-party applications that
explicitly use this filter with a BIO chain that can short-write and that
write large, newline-free data influenced by an attacker would be affected.
However, the circumstances where this could happen are unlikely to be under
attacker control, and BIO_f_linebuffer is unlikely to be handling non-curated
data controlled by an attacker. For that reason the issue was assessed as
Low severity.
The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,
as the BIO implementation is outside the OpenSSL FIPS module boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0, 1.1.1 and 1.0.2 are vulnerable to this issue.
References
| URL | Tags | ||
|---|---|---|---|
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/384011202af92605d926fafe4a0bcd6b65d162ad | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/475c466ef2fbd8fc1df6fae1c3eed9c813fc8ff6 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/4c96fbba618e1940f038012506ee9e21d32ee12c | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/6845c3b6460a98b1ec4e463baa2ea1a63a32d7c0 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/68a7cd2e2816c3a02f4d45a2ce43fc04fac97096 | Patch | |
| openssl-security@openssl.org | https://openssl-library.org/news/secadv/20260127.txt | Vendor Advisory |
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},
{
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}
],
"id": "CVE-2025-68160",
"lastModified": "2026-02-02T18:36:57.727",
"metrics": {
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"attackVector": "LOCAL",
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"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"published": "2026-01-27T16:16:15.900",
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"tags": [
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"url": "https://github.com/openssl/openssl/commit/384011202af92605d926fafe4a0bcd6b65d162ad"
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},
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}
FKIE_CVE-2025-15467
Vulnerability from fkie_nvd - Published: 2026-01-27 16:16 - Updated: 2026-03-19 19:16
Severity ?
Summary
Issue summary: Parsing CMS AuthEnvelopedData or EnvelopedData message with
maliciously crafted AEAD parameters can trigger a stack buffer overflow.
Impact summary: A stack buffer overflow may lead to a crash, causing Denial
of Service, or potentially remote code execution.
When parsing CMS (Auth)EnvelopedData structures that use AEAD ciphers such as
AES-GCM, the IV (Initialization Vector) encoded in the ASN.1 parameters is
copied into a fixed-size stack buffer without verifying that its length fits
the destination. An attacker can supply a crafted CMS message with an
oversized IV, causing a stack-based out-of-bounds write before any
authentication or tag verification occurs.
Applications and services that parse untrusted CMS or PKCS#7 content using
AEAD ciphers (e.g., S/MIME (Auth)EnvelopedData with AES-GCM) are vulnerable.
Because the overflow occurs prior to authentication, no valid key material
is required to trigger it. While exploitability to remote code execution
depends on platform and toolchain mitigations, the stack-based write
primitive represents a severe risk.
The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this
issue, as the CMS implementation is outside the OpenSSL FIPS module
boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3 and 3.0 are vulnerable to this issue.
OpenSSL 1.1.1 and 1.0.2 are not affected by this issue.
References
| URL | Tags | ||
|---|---|---|---|
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/2c8f0e5fa9b6ee5508a0349e4572ddb74db5a703 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/5f26d4202f5b89664c5c3f3c62086276026ba9a9 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/6ced0fe6b10faa560e410e3ee8d6c82f06c65ea3 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/ce39170276daec87f55c39dad1f629b56344429e | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/d0071a0799f20cc8101730145349ed4487c268dc | Patch | |
| openssl-security@openssl.org | https://openssl-library.org/news/secadv/20260127.txt | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | http://www.openwall.com/lists/oss-security/2026/01/27/10 | Mailing List | |
| af854a3a-2127-422b-91ae-364da2661108 | http://www.openwall.com/lists/oss-security/2026/02/25/6 | ||
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | https://github.com/guiimoraes/CVE-2025-15467 |
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"value": "Issue summary: Parsing CMS AuthEnvelopedData or EnvelopedData message with\nmaliciously crafted AEAD parameters can trigger a stack buffer overflow.\n\nImpact summary: A stack buffer overflow may lead to a crash, causing Denial\nof Service, or potentially remote code execution.\n\nWhen parsing CMS (Auth)EnvelopedData structures that use AEAD ciphers such as\nAES-GCM, the IV (Initialization Vector) encoded in the ASN.1 parameters is\ncopied into a fixed-size stack buffer without verifying that its length fits\nthe destination. An attacker can supply a crafted CMS message with an\noversized IV, causing a stack-based out-of-bounds write before any\nauthentication or tag verification occurs.\n\nApplications and services that parse untrusted CMS or PKCS#7 content using\nAEAD ciphers (e.g., S/MIME (Auth)EnvelopedData with AES-GCM) are vulnerable.\nBecause the overflow occurs prior to authentication, no valid key material\nis required to trigger it. While exploitability to remote code execution\ndepends on platform and toolchain mitigations, the stack-based write\nprimitive represents a severe risk.\n\nThe FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this\nissue, as the CMS implementation is outside the OpenSSL FIPS module\nboundary.\n\nOpenSSL 3.6, 3.5, 3.4, 3.3 and 3.0 are vulnerable to this issue.\n\nOpenSSL 1.1.1 and 1.0.2 are not affected by this issue."
},
{
"lang": "es",
"value": "Resumen del problema: Analizar un mensaje CMS AuthEnvelopedData con par\u00e1metros AEAD creados maliciosamente puede desencadenar un desbordamiento de b\u00fafer de pila.\n\nResumen del impacto: Un desbordamiento de b\u00fafer de pila puede provocar un fallo, causando Denegaci\u00f3n de Servicio, o potencialmente ejecuci\u00f3n remota de c\u00f3digo.\n\nAl analizar estructuras CMS AuthEnvelopedData que utilizan cifrados AEAD como AES-GCM, el IV (Vector de Inicializaci\u00f3n) codificado en los par\u00e1metros ASN.1 se copia en un b\u00fafer de pila de tama\u00f1o fijo sin verificar que su longitud se ajuste al destino. Un atacante puede proporcionar un mensaje CMS manipulado con un IV de tama\u00f1o excesivo, causando una escritura fuera de l\u00edmites basada en pila antes de que ocurra cualquier autenticaci\u00f3n o verificaci\u00f3n de etiqueta.\n\nLas aplicaciones y servicios que analizan contenido CMS o PKCS#7 no confiable utilizando cifrados AEAD (por ejemplo, S/MIME AuthEnvelopedData con AES-GCM) son vulnerables. Debido a que el desbordamiento ocurre antes de la autenticaci\u00f3n, no se requiere material de clave v\u00e1lido para desencadenarlo. Si bien la explotabilidad para la ejecuci\u00f3n remota de c\u00f3digo depende de las mitigaciones de la plataforma y la cadena de herramientas, la primitiva de escritura basada en pila representa un riesgo grave.\n\nLos m\u00f3dulos FIPS en 3.6, 3.5, 3.4, 3.3 y 3.0 no se ven afectados por este problema, ya que la implementaci\u00f3n de CMS est\u00e1 fuera del l\u00edmite del m\u00f3dulo FIPS de OpenSSL.\n\nOpenSSL 3.6, 3.5, 3.4, 3.3 y 3.0 son vulnerables a este problema.\n\nOpenSSL 1.1.1 y 1.0.2 no se ven afectados por este problema."
}
],
"id": "CVE-2025-15467",
"lastModified": "2026-03-19T19:16:19.230",
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"tags": [
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"url": "https://openssl-library.org/news/secadv/20260127.txt"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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{
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},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"url": "https://github.com/guiimoraes/CVE-2025-15467"
}
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}
FKIE_CVE-2025-15469
Vulnerability from fkie_nvd - Published: 2026-01-27 16:16 - Updated: 2026-02-02 18:37
Severity ?
Summary
Issue summary: The 'openssl dgst' command-line tool silently truncates input
data to 16MB when using one-shot signing algorithms and reports success instead
of an error.
Impact summary: A user signing or verifying files larger than 16MB with
one-shot algorithms (such as Ed25519, Ed448, or ML-DSA) may believe the entire
file is authenticated while trailing data beyond 16MB remains unauthenticated.
When the 'openssl dgst' command is used with algorithms that only support
one-shot signing (Ed25519, Ed448, ML-DSA-44, ML-DSA-65, ML-DSA-87), the input
is buffered with a 16MB limit. If the input exceeds this limit, the tool
silently truncates to the first 16MB and continues without signaling an error,
contrary to what the documentation states. This creates an integrity gap where
trailing bytes can be modified without detection if both signing and
verification are performed using the same affected codepath.
The issue affects only the command-line tool behavior. Verifiers that process
the full message using library APIs will reject the signature, so the risk
primarily affects workflows that both sign and verify with the affected
'openssl dgst' command. Streaming digest algorithms for 'openssl dgst' and
library users are unaffected.
The FIPS modules in 3.5 and 3.6 are not affected by this issue, as the
command-line tools are outside the OpenSSL FIPS module boundary.
OpenSSL 3.5 and 3.6 are vulnerable to this issue.
OpenSSL 3.4, 3.3, 3.0, 1.1.1 and 1.0.2 are not affected by this issue.
References
| URL | Tags | ||
|---|---|---|---|
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/310f305eb92ea8040d6b3cb75a5feeba8e6acf2f | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/a7936fa4bd23c906e1955a16a0a0ab39a4953a61 | Patch | |
| openssl-security@openssl.org | https://openssl-library.org/news/secadv/20260127.txt | Vendor Advisory |
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}
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"id": "CVE-2025-15469",
"lastModified": "2026-02-02T18:37:39.313",
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FKIE_CVE-2025-15468
Vulnerability from fkie_nvd - Published: 2026-01-27 16:16 - Updated: 2026-02-02 18:38
Severity ?
Summary
Issue summary: If an application using the SSL_CIPHER_find() function in
a QUIC protocol client or server receives an unknown cipher suite from
the peer, a NULL dereference occurs.
Impact summary: A NULL pointer dereference leads to abnormal termination of
the running process causing Denial of Service.
Some applications call SSL_CIPHER_find() from the client_hello_cb callback
on the cipher ID received from the peer. If this is done with an SSL object
implementing the QUIC protocol, NULL pointer dereference will happen if
the examined cipher ID is unknown or unsupported.
As it is not very common to call this function in applications using the QUIC
protocol and the worst outcome is Denial of Service, the issue was assessed
as Low severity.
The vulnerable code was introduced in the 3.2 version with the addition
of the QUIC protocol support.
The FIPS modules in 3.6, 3.5, 3.4 and 3.3 are not affected by this issue,
as the QUIC implementation is outside the OpenSSL FIPS module boundary.
OpenSSL 3.6, 3.5, 3.4 and 3.3 are vulnerable to this issue.
OpenSSL 3.0, 1.1.1 and 1.0.2 are not affected by this issue.
References
| URL | Tags | ||
|---|---|---|---|
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/1f08e54bad32843044fe8a675948d65e3b4ece65 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/7c88376731c589ee5b36116c5a6e32d5ae5f7ae2 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/b2539639400288a4580fe2d76247541b976bade4 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/d75b309879631d45b972396ce4e5102559c64ac7 | Patch | |
| openssl-security@openssl.org | https://openssl-library.org/news/secadv/20260127.txt | Vendor Advisory |
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"value": "Resumen del problema: Si una aplicaci\u00f3n que utiliza la funci\u00f3n SSL_CIPHER_find() en un cliente o servidor del protocolo QUIC recibe un conjunto de cifrado desconocido del par, ocurre una desreferencia de NULL.\n\nResumen del impacto: Una desreferencia de puntero NULL conduce a la terminaci\u00f3n anormal del proceso en ejecuci\u00f3n causando Denegaci\u00f3n de Servicio.\n\nAlgunas aplicaciones llaman a SSL_CIPHER_find() desde la devoluci\u00f3n de llamada client_hello_cb en el ID de cifrado recibido del par. Si esto se hace con un objeto SSL que implementa el protocolo QUIC, ocurrir\u00e1 una desreferencia de puntero NULL si el ID de cifrado examinado es desconocido o no compatible.\n\nComo no es muy com\u00fan llamar a esta funci\u00f3n en aplicaciones que utilizan el protocolo QUIC y el peor resultado es Denegaci\u00f3n de Servicio, el problema fue evaluado como de baja severidad.\n\nEl c\u00f3digo vulnerable fue introducido en la versi\u00f3n 3.2 con la adici\u00f3n del soporte para el protocolo QUIC.\n\nLos m\u00f3dulos FIPS en 3.6, 3.5, 3.4 y 3.3 no se ven afectados por este problema, ya que la implementaci\u00f3n de QUIC est\u00e1 fuera del l\u00edmite del m\u00f3dulo FIPS de OpenSSL.\n\nOpenSSL 3.6, 3.5, 3.4 y 3.3 son vulnerables a este problema.\n\nOpenSSL 3.0, 1.1.1 y 1.0.2 no se ven afectados por este problema."
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"lastModified": "2026-02-02T18:38:00.947",
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]
}
FKIE_CVE-2025-11187
Vulnerability from fkie_nvd - Published: 2026-01-27 16:16 - Updated: 2026-03-20 14:16
Severity ?
Summary
Issue summary: PBMAC1 parameters in PKCS#12 files are missing validation
which can trigger a stack-based buffer overflow, invalid pointer or NULL
pointer dereference during MAC verification.
Impact summary: The stack buffer overflow or NULL pointer dereference may
cause a crash leading to Denial of Service for an application that parses
untrusted PKCS#12 files. The buffer overflow may also potentially enable
code execution depending on platform mitigations.
When verifying a PKCS#12 file that uses PBMAC1 for the MAC, the PBKDF2
salt and keylength parameters from the file are used without validation.
If the value of keylength exceeds the size of the fixed stack buffer used
for the derived key (64 bytes), the key derivation will overflow the buffer.
The overflow length is attacker-controlled. Also, if the salt parameter is
not an OCTET STRING type this can lead to invalid or NULL pointer
dereference.
Exploiting this issue requires a user or application to process
a maliciously crafted PKCS#12 file. It is uncommon to accept untrusted
PKCS#12 files in applications as they are usually used to store private
keys which are trusted by definition. For this reason the issue was assessed
as Moderate severity.
The FIPS modules in 3.6, 3.5 and 3.4 are not affected by this issue, as
PKCS#12 processing is outside the OpenSSL FIPS module boundary.
OpenSSL 3.6, 3.5 and 3.4 are vulnerable to this issue.
OpenSSL 3.3, 3.0, 1.1.1 and 1.0.2 are not affected by this issue as they do
not support PBMAC1 in PKCS#12.
References
| URL | Tags | ||
|---|---|---|---|
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/205e3a55e16e4bd08c12fdbd3416ab829c0f6206 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/8caf359d6e46fb413e8f5f0df765d2e8a51df4e8 | Patch | |
| openssl-security@openssl.org | https://github.com/openssl/openssl/commit/e1079bc17ed93ff16f6b86f33a2fe3336e78817e | Patch | |
| openssl-security@openssl.org | https://openssl-library.org/news/secadv/20260127.txt | Vendor Advisory | |
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | https://github.com/metadust/CVE-2025-11187 |
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{
"lang": "es",
"value": "Resumen del problema: Los par\u00e1metros PBMAC1 en archivos PKCS#12 carecen de validaci\u00f3n, lo que puede desencadenar un desbordamiento de b\u00fafer basado en pila, un puntero inv\u00e1lido o una desreferencia de puntero NULL durante la verificaci\u00f3n MAC.\n\nResumen del impacto: El desbordamiento de b\u00fafer de pila o la desreferencia de puntero NULL pueden causar un fallo que lleve a una denegaci\u00f3n de servicio para una aplicaci\u00f3n que analiza archivos PKCS#12 no confiables. El desbordamiento de b\u00fafer tambi\u00e9n puede potencialmente permitir la ejecuci\u00f3n de c\u00f3digo dependiendo de las mitigaciones de la plataforma.\n\nAl verificar un archivo PKCS#12 que utiliza PBMAC1 para el MAC, los par\u00e1metros de sal y longitud de clave (keylength) de PBKDF2 del archivo se utilizan sin validaci\u00f3n. Si el valor de la longitud de clave (keylength) excede el tama\u00f1o del b\u00fafer de pila fijo utilizado para la clave derivada (64 bytes), la derivaci\u00f3n de clave desbordar\u00e1 el b\u00fafer. La longitud del desbordamiento es controlada por el atacante. Adem\u00e1s, si el par\u00e1metro de sal no es de tipo OCTET STRING, esto puede llevar a una desreferencia de puntero inv\u00e1lido o NULL.\n\nLa explotaci\u00f3n de este problema requiere que un usuario o aplicaci\u00f3n procese un archivo PKCS#12 maliciosamente elaborado. Es poco com\u00fan aceptar archivos PKCS#12 no confiables en aplicaciones, ya que generalmente se utilizan para almacenar claves privadas que son confiables por definici\u00f3n. Por esta raz\u00f3n, el problema fue evaluado como de severidad Moderada.\n\nLos m\u00f3dulos FIPS en 3.6, 3.5 y 3.4 no se ven afectados por este problema, ya que el procesamiento de PKCS#12 est\u00e1 fuera del l\u00edmite del m\u00f3dulo FIPS de OpenSSL.\n\nOpenSSL 3.6, 3.5 y 3.4 son vulnerables a este problema.\n\nOpenSSL 3.3, 3.0, 1.1.1 y 1.0.2 no se ven afectados por este problema, ya que no soportan PBMAC1 en PKCS#12."
}
],
"id": "CVE-2025-11187",
"lastModified": "2026-03-20T14:16:13.890",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.3,
"impactScore": 4.7,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
},
"published": "2026-01-27T16:16:14.093",
"references": [
{
"source": "openssl-security@openssl.org",
"tags": [
"Patch"
],
"url": "https://github.com/openssl/openssl/commit/205e3a55e16e4bd08c12fdbd3416ab829c0f6206"
},
{
"source": "openssl-security@openssl.org",
"tags": [
"Patch"
],
"url": "https://github.com/openssl/openssl/commit/8caf359d6e46fb413e8f5f0df765d2e8a51df4e8"
},
{
"source": "openssl-security@openssl.org",
"tags": [
"Patch"
],
"url": "https://github.com/openssl/openssl/commit/e1079bc17ed93ff16f6b86f33a2fe3336e78817e"
},
{
"source": "openssl-security@openssl.org",
"tags": [
"Vendor Advisory"
],
"url": "https://openssl-library.org/news/secadv/20260127.txt"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"url": "https://github.com/metadust/CVE-2025-11187"
}
],
"sourceIdentifier": "openssl-security@openssl.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-476"
},
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "openssl-security@openssl.org",
"type": "Secondary"
}
]
}