CWE-295
AllowedImproper Certificate Validation
Abstraction: Base · Status: Draft
The product does not validate, or incorrectly validates, a certificate.
1913 vulnerabilities reference this CWE, most recent first.
GHSA-H4RV-393V-2F5H
Vulnerability from github – Published: 2023-07-18 00:31 – Updated: 2024-04-04 06:12If a TLS 1.3 client gets neither a PSK (pre shared key) extension nor a KSE (key share extension) when connecting to a malicious server, a default predictable buffer gets used for the IKM (Input Keying Material) value when generating the session master secret. Using a potentially known IKM value when generating the session master secret key compromises the key generated, allowing an eavesdropper to reconstruct it and potentially allowing access to or meddling with message contents in the session. This issue does not affect client validation of connected servers, nor expose private key information, but could result in an insecure TLS 1.3 session when not controlling both sides of the connection. wolfSSL recommends that TLS 1.3 client side users update the version of wolfSSL used.
{
"affected": [],
"aliases": [
"CVE-2023-3724"
],
"database_specific": {
"cwe_ids": [
"CWE-20",
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-07-17T22:15:09Z",
"severity": "HIGH"
},
"details": "If a TLS 1.3 client gets neither a PSK (pre shared key) extension nor a KSE (key share extension) when connecting to a malicious server, a default predictable buffer gets used for the IKM (Input Keying Material) value when generating the session master secret. Using a potentially known IKM value when generating the session master secret key compromises the key generated, allowing an eavesdropper to reconstruct it and potentially allowing access to or meddling with message contents in the session. This issue does not affect client validation of connected servers, nor expose private key information, but could result in an insecure TLS 1.3 session when not controlling both sides of the connection. wolfSSL recommends that TLS 1.3 client side users update the version of wolfSSL used.\u00a0\n\n\n",
"id": "GHSA-h4rv-393v-2f5h",
"modified": "2024-04-04T06:12:07Z",
"published": "2023-07-18T00:31:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3724"
},
{
"type": "WEB",
"url": "https://github.com/wolfSSL/wolfssl/pull/6412"
},
{
"type": "WEB",
"url": "https://www.wolfssl.com/docs/security-vulnerabilities"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H4WH-367G-85GM
Vulnerability from github – Published: 2026-06-25 21:31 – Updated: 2026-06-26 21:32X.509 trust-chain bypass in the OpenSSL compatibility certificate verifier (wolfSSL_X509_verify_cert()). This affects only builds with --enable-opensslextra (OPENSSL_EXTRA) and whose application validates certificates by calling X509_verify_cert() with caller-supplied untrusted intermediate certificates; for those users it is critical, otherwise the library is unaffected. In particular, native wolfSSL TLS/DTLS usage is not impacted. wolfSSL's X509_verify_cert() temporarily loads each caller-supplied untrusted intermediate into the certificate manager but failed to drop them before the trusted-store check, so an untrusted intermediate could anchor the path itself. An attacker can present a chain that never reaches a configured trust anchor and have it accepted, resulting in acceptance of an attacker-controlled certificate. This is certificate verification independent of TLS (e.g. S/MIME/CMS, code/firmware signing, JWT/JWS x5c), is not specific to any key type or algorithm, and a single untrusted intermediate suffices. The default wolfSSL TLS handshake (WOLFSSL_VERIFY_PEER) is not affected; only TLS applications doing manual or deferred peer verification through this API are, which also requires --enable-sessioncerts.
{
"affected": [],
"aliases": [
"CVE-2026-11310"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-25T20:17:09Z",
"severity": "HIGH"
},
"details": "X.509 trust-chain bypass in the OpenSSL compatibility certificate verifier (wolfSSL_X509_verify_cert()). This affects only builds with --enable-opensslextra (OPENSSL_EXTRA) and whose application validates certificates by calling X509_verify_cert() with caller-supplied untrusted intermediate certificates; for those users it is critical, otherwise the library is unaffected. In particular, native wolfSSL TLS/DTLS usage is not impacted. wolfSSL\u0027s X509_verify_cert() temporarily loads each caller-supplied untrusted intermediate into the certificate manager but failed to drop them before the trusted-store check, so an untrusted intermediate could anchor the path itself. An attacker can present a chain that never reaches a configured trust anchor and have it accepted, resulting in acceptance of an attacker-controlled certificate. This is certificate verification independent of TLS (e.g. S/MIME/CMS, code/firmware signing, JWT/JWS x5c), is not specific to any key type or algorithm, and a single untrusted intermediate suffices. The default wolfSSL TLS handshake (WOLFSSL_VERIFY_PEER) is not affected; only TLS applications doing manual or deferred peer verification through this API are, which also requires --enable-sessioncerts.",
"id": "GHSA-h4wh-367g-85gm",
"modified": "2026-06-26T21:32:11Z",
"published": "2026-06-25T21:31:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-11310"
},
{
"type": "WEB",
"url": "https://github.com/wolfSSL/wolfssl/pull/10674"
},
{
"type": "WEB",
"url": "https://www.wolfssl.com/docs/security-vulnerabilities"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-H573-P6V2-3P2P
Vulnerability from github – Published: 2026-02-13 03:31 – Updated: 2026-04-01 21:30A vulnerability in the certificate validation logic may allow applications to accept untrusted or improperly validated server identities during TLS communication. An attacker in a privileged network position may be able to intercept or modify traffic if they can position themselves within the communication channel. Successful exploitation may compromise confidentiality, integrity, and availability of application data.
{
"affected": [],
"aliases": [
"CVE-2025-9293"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-13T02:16:46Z",
"severity": "HIGH"
},
"details": "A vulnerability in the certificate validation logic may allow applications to accept untrusted or improperly validated server identities during TLS communication. An attacker in a privileged network position may be able to intercept or modify traffic if they can position themselves within the communication channel. Successful exploitation may compromise confidentiality, integrity, and availability of application data.",
"id": "GHSA-h573-p6v2-3p2p",
"modified": "2026-04-01T21:30:26Z",
"published": "2026-02-13T03:31:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-9293"
},
{
"type": "WEB",
"url": "https://www.omadanetworks.com/us/support/faq/4969"
},
{
"type": "WEB",
"url": "https://www.tp-link.com/us/support/faq/4969"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-H5HM-73HG-FRRM
Vulnerability from github – Published: 2022-05-14 02:56 – Updated: 2024-01-30 22:11A man in the middle vulnerability exists in Jenkins Inedo ProGet Plugin 0.8 and earlier in ProGetApi.java, ProGetConfig.java, ProGetConfiguration.java that allows attackers to impersonate any service that Jenkins connects to.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 0.8"
},
"package": {
"ecosystem": "Maven",
"name": "com.inedo.proget:inedo-proget"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2018-1999034"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": true,
"github_reviewed_at": "2024-01-30T22:11:46Z",
"nvd_published_at": "2018-08-01T13:29:00Z",
"severity": "HIGH"
},
"details": "A man in the middle vulnerability exists in Jenkins Inedo ProGet Plugin 0.8 and earlier in ProGetApi.java, ProGetConfig.java, ProGetConfiguration.java that allows attackers to impersonate any service that Jenkins connects to.",
"id": "GHSA-h5hm-73hg-frrm",
"modified": "2024-01-30T22:11:46Z",
"published": "2022-05-14T02:56:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-1999034"
},
{
"type": "WEB",
"url": "https://jenkins.io/security/advisory/2018-07-30/#SECURITY-933"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
],
"summary": "Jenkins Inedo ProGet Plugin globally and unconditionally disabled SSL/TLS certificate validation"
}
GHSA-H64P-H4X7-H6R6
Vulnerability from github – Published: 2024-10-18 09:31 – Updated: 2024-10-22 18:32A vulnerability has been identified in Bitdefender Safepay's handling of HTTPS connections. The issue arises when the product blocks a connection due to an untrusted server certificate but allows the user to add the site to exceptions, resulting in the product trusting the certificate for subsequent HTTPS scans. This vulnerability allows an attacker to perform a Man-in-the-Middle (MITM) attack by using a self-signed certificate, which the product will trust after the site has been added to exceptions. This can lead to the interception and potential alteration of secure communications.
{
"affected": [],
"aliases": [
"CVE-2023-6058"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-18T08:15:03Z",
"severity": "HIGH"
},
"details": "A vulnerability has been identified in Bitdefender Safepay\u0027s handling of HTTPS connections. The issue arises when the product blocks a connection due to an untrusted server certificate but allows the user to add the site to exceptions, resulting in the product trusting the certificate for subsequent HTTPS scans. This vulnerability allows an attacker to perform a Man-in-the-Middle (MITM) attack by using a self-signed certificate, which the product will trust after the site has been added to exceptions. This can lead to the interception and potential alteration of secure communications.",
"id": "GHSA-h64p-h4x7-h6r6",
"modified": "2024-10-22T18:32:05Z",
"published": "2024-10-18T09:31:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6058"
},
{
"type": "WEB",
"url": "https://www.bitdefender.com/support/security-advisories/https-certificate-validation-issue-in-bitdefender-safepay-va-11167"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-H65J-9J8P-PPRC
Vulnerability from github – Published: 2025-09-29 21:30 – Updated: 2025-10-09 18:30Vasion Print (formerly PrinterLogic) Virtual Appliance Host prior to version 25.1.102 and Application prior to version 25.1.1413 (Windows client deployments) contain a registry key that can be enabled by administrators, causing the client to skip SSL/TLS certificate validation. An attacker who can intercept HTTPS traffic can then inject malicious driver DLLs, resulting in remote code execution with SYSTEM privileges; a local attacker can achieve local privilege escalation via a junction‑point DLL injection. This vulnerability has been confirmed to be remediated, but it is unclear as to when the patch was introduced.
{
"affected": [],
"aliases": [
"CVE-2025-34235"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-29T21:15:37Z",
"severity": "CRITICAL"
},
"details": "Vasion Print (formerly PrinterLogic) Virtual Appliance Host prior to version 25.1.102 and Application prior to version 25.1.1413 (Windows client deployments) contain a registry key that can be enabled by administrators, causing the client to skip SSL/TLS certificate validation. An attacker who can intercept HTTPS traffic can then inject malicious driver DLLs, resulting in remote code execution with SYSTEM privileges; a local attacker can achieve local privilege escalation via a junction\u2011point DLL injection.\u00a0This vulnerability has been confirmed to be remediated, but it is unclear as to when the patch was introduced.",
"id": "GHSA-h65j-9j8p-pprc",
"modified": "2025-10-09T18:30:27Z",
"published": "2025-09-29T21:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-34235"
},
{
"type": "WEB",
"url": "https://help.printerlogic.com/saas/Print/Security/Security-Bulletins.htm"
},
{
"type": "WEB",
"url": "https://help.printerlogic.com/va/Print/Security/Security-Bulletins.htm"
},
{
"type": "WEB",
"url": "https://pierrekim.github.io/blog/2025-04-08-vasion-printerlogic-83-vulnerabilities.html#win-lpe-04"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/vasion-print-printerlogic-weak-ssl-tls-certificate-validation-rce"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-H665-2RJQ-27V4
Vulnerability from github – Published: 2026-06-25 15:32 – Updated: 2026-06-25 15:32Dell Display and Peripheral Manager (DDPM Mac), versions prior to 2.3, contain an Improper Certificate Validation vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Protection mechanism bypass.
{
"affected": [],
"aliases": [
"CVE-2026-46734"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-25T14:16:40Z",
"severity": "HIGH"
},
"details": "Dell Display and Peripheral Manager (DDPM Mac), versions prior to 2.3, contain an Improper Certificate Validation vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Protection mechanism bypass.",
"id": "GHSA-h665-2rjq-27v4",
"modified": "2026-06-25T15:32:00Z",
"published": "2026-06-25T15:32:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46734"
},
{
"type": "WEB",
"url": "https://www.dell.com/support/kbdoc/en-hk/000475656/dsa-2026-267?msockid=3021cac2195069ed3194ddad186a68f9"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H698-9R6P-X6XW
Vulnerability from github – Published: 2022-05-14 03:43 – Updated: 2022-05-14 03:43Huawei AR3200 V200R008C20, V200R008C30, TE40 V600R006C00, TE50 V600R006C00, TE60 V600R006C00 have a denial of service vulnerability. The software decodes X.509 certificate in an improper way. A remote unauthenticated attacker could send a crafted X.509 certificate to the device. Successful exploit could result in a denial of service on the device.
{
"affected": [],
"aliases": [
"CVE-2017-15341"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-02-15T16:29:00Z",
"severity": "HIGH"
},
"details": "Huawei AR3200 V200R008C20, V200R008C30, TE40 V600R006C00, TE50 V600R006C00, TE60 V600R006C00 have a denial of service vulnerability. The software decodes X.509 certificate in an improper way. A remote unauthenticated attacker could send a crafted X.509 certificate to the device. Successful exploit could result in a denial of service on the device.",
"id": "GHSA-h698-9r6p-x6xw",
"modified": "2022-05-14T03:43:43Z",
"published": "2022-05-14T03:43:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-15341"
},
{
"type": "WEB",
"url": "http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20171129-01-cert-en"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H6Q6-XXWV-MM6V
Vulnerability from github – Published: 2024-08-25 00:30 – Updated: 2025-11-03 21:31An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) an ROA or a Manifest containing a signedAttrs encoded in non-canonical form. This bypasses Fort's BER decoder, reaching a point in the code that panics when faced with data not encoded in DER. Because Fort is an RPKI Relying Party, a panic can lead to Route Origin Validation unavailability, which can lead to compromised routing.
{
"affected": [],
"aliases": [
"CVE-2024-45234"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-24T23:15:04Z",
"severity": "HIGH"
},
"details": "An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) an ROA or a Manifest containing a signedAttrs encoded in non-canonical form. This bypasses Fort\u0027s BER decoder, reaching a point in the code that panics when faced with data not encoded in DER. Because Fort is an RPKI Relying Party, a panic can lead to Route Origin Validation unavailability, which can lead to compromised routing.",
"id": "GHSA-h6q6-xxwv-mm6v",
"modified": "2025-11-03T21:31:11Z",
"published": "2024-08-25T00:30:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-45234"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/02/msg00030.html"
},
{
"type": "WEB",
"url": "https://nicmx.github.io/FORT-validator/CVE.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H6WP-6M5M-GC8M
Vulnerability from github – Published: 2022-05-24 17:29 – Updated: 2022-05-24 17:29An incomplete SSL server certification validation vulnerability in the Trend Micro Security 2019 (v15) consumer family of products could allow an attacker to combine this vulnerability with another attack to trick an affected client into downloading a malicious update instead of the expected one. CWE-494: Update files are not properly verified.
{
"affected": [],
"aliases": [
"CVE-2020-15604"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-09-24T02:15:00Z",
"severity": "HIGH"
},
"details": "An incomplete SSL server certification validation vulnerability in the Trend Micro Security 2019 (v15) consumer family of products could allow an attacker to combine this vulnerability with another attack to trick an affected client into downloading a malicious update instead of the expected one. CWE-494: Update files are not properly verified.",
"id": "GHSA-h6wp-6m5m-gc8m",
"modified": "2022-05-24T17:29:22Z",
"published": "2022-05-24T17:29:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-15604"
},
{
"type": "WEB",
"url": "https://helpcenter.trendmicro.com/en-us/article/TMKA-09890"
},
{
"type": "WEB",
"url": "https://helpcenter.trendmicro.com/ja-jp/article/TMKA-09673"
},
{
"type": "WEB",
"url": "https://jvn.jp/en/jp/JVN60093979"
},
{
"type": "WEB",
"url": "https://jvn.jp/jp/JVN60093979"
}
],
"schema_version": "1.4.0",
"severity": []
}
Mitigation
Certificates should be carefully managed and checked to assure that data are encrypted with the intended owner's public key.
Mitigation
If certificate pinning is being used, ensure that all relevant properties of the certificate are fully validated before the certificate is pinned, including the hostname.
CAPEC-459: Creating a Rogue Certification Authority Certificate
An adversary exploits a weakness resulting from using a hashing algorithm with weak collision resistance to generate certificate signing requests (CSR) that contain collision blocks in their "to be signed" parts. The adversary submits one CSR to be signed by a trusted certificate authority then uses the signed blob to make a second certificate appear signed by said certificate authority. Due to the hash collision, both certificates, though different, hash to the same value and so the signed blob works just as well in the second certificate. The net effect is that the adversary's second X.509 certificate, which the Certification Authority has never seen, is now signed and validated by that Certification Authority.
CAPEC-475: Signature Spoofing by Improper Validation
An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.