Vulnerability-Lookup

CVE-2026-63072 (GCVE-0-2026-63072)

Vulnerability from cvelistv5 – Published: 2026-08-25 12:59 – Updated: 2026-08-25 14:29

Title

Heap Buffer Overflow in CMS Key Unwrapping

Summary

Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive can write and cleanse more bytes than that query reports, causing an 8-byte out-of-bounds heap write. Impact summary: An attacker who supplies a crafted CMS message can trigger a deterministic 8-byte out-of-bounds heap write when the victim decrypts it with CMS_decrypt(), corrupting the heap and typically resulting in a Denial of Service. CWE: CWE-787: Out-of-bounds Write Description: The key-wrap OID is potentially attacker-controlled on the wire. CMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers. An attacker can take a legitimate message and change a single OID byte to select the padded variant while leaving the message otherwise valid. Since the unwrap key is derived from the recipient's private operation (ECDH key agreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot pass, and the decryption fails with integrity failure. The write is a fixed-size (8-byte), fixed-value (zero) heap overflow immediately past the allocation, requires no special configuration, and is reachable from the public CMS_decrypt() function. The consequence is a heap corruption leading to a Denial of Service. The fix in the CMS code sizes the unwrap output buffer for the worst case so a failed unwrap cannot write past the allocation. FIPS impact: no As the CMS code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-25 14:29 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

openssl mitre root

References

6 references

URL	Tags
https://openssl-library.org/news/secadv/20260825.txt	vendor-advisory
https://github.com/openssl/openssl/commit/9530a5f…	patch
https://github.com/openssl/openssl/commit/2a3dac8…	patch
https://github.com/openssl/openssl/commit/87784ad…	patch
https://github.com/openssl/openssl/commit/9ec2f6d…	patch
https://github.com/openssl/openssl/commit/a0c8ec5…	patch

Impacted products

1 product

Vendor	Product	Version	CPE status
OpenSSL	OpenSSL	Affected: 4.0.0 , < 4.0.2 (semver) Affected: 3.6.0 , < 3.6.4 (semver) Affected: 3.5.0 , < 3.5.8 (semver) Affected: 3.4.0 , < 3.4.7 (semver) Affected: 3.0.0 , < 3.0.22 (semver) Affected: 1.1.1 , < 1.1.1zi (custom)	guessed

Date Public

2026-08-25 11:36

Credits

Bhabani Sankar Das Filipe Casal(Trail of Bits) Daniel Kubec

Show details on NVD website

JSON

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      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-63072\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-25T14:29:50.344129Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-25T14:29:44.760Z\"}}], \"cna\": {\"title\": \"Heap Buffer Overflow in CMS Key Unwrapping\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"Bhabani Sankar Das\"}, {\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"Filipe Casal(Trail of Bits)\"}, {\"lang\": \"en\", \"type\": \"remediation developer\", \"value\": \"Daniel Kubec\"}], \"metrics\": [{\"other\": {\"type\": \"https://openssl-library.org/policies/general/security-policy/\", \"content\": {\"text\": \"Moderate\"}}, \"format\": \"other\"}], \"affected\": [{\"vendor\": \"OpenSSL\", \"product\": \"OpenSSL\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.0.0\", \"lessThan\": \"4.0.2\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"3.6.0\", \"lessThan\": \"3.6.4\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"3.5.0\", \"lessThan\": \"3.5.8\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"3.4.0\", \"lessThan\": \"3.4.7\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"3.0.0\", \"lessThan\": \"3.0.22\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"1.1.1\", \"lessThan\": \"1.1.1zi\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}], \"datePublic\": \"2026-08-25T11:36:16.000Z\", \"references\": [{\"url\": \"https://openssl-library.org/news/secadv/20260825.txt\", \"name\": \"OpenSSL Advisory\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://github.com/openssl/openssl/commit/9530a5fd1aacaeccdced4478ea2340a480613335\", \"name\": \"4.0.2 git commit\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/openssl/openssl/commit/2a3dac874c8057c1f0186849bf1ede1ae7b6b756\", \"name\": \"3.6.4 git commit\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/openssl/openssl/commit/87784ad619af36b8807c2044b3940006fccc1e42\", \"name\": \"3.5.8 git commit\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/openssl/openssl/commit/9ec2f6d2ae2bcad907cf7ee38584855bafe4979a\", \"name\": \"3.4.7 git commit\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/openssl/openssl/commit/a0c8ec557d9cac078f032d76cdf684fe743eb382\", \"name\": \"3.0.22 git commit\", \"tags\": [\"patch\"]}], \"x_generator\": {\"engine\": \"Vulnogram 0.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based\\non querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive\\ncan write and cleanse more bytes than that query reports, causing an 8-byte\\nout-of-bounds heap write.\\n\\nImpact summary: An attacker who supplies a crafted CMS message can trigger a\\ndeterministic 8-byte out-of-bounds heap write when the victim decrypts it\\nwith CMS_decrypt(), corrupting the heap and typically resulting in a Denial\\nof Service.\\n\\nCWE: CWE-787: Out-of-bounds Write\\n\\nDescription: The key-wrap OID is potentially attacker-controlled on the wire.\\nCMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers.\\nAn attacker can take a legitimate message and change a single OID byte to\\nselect the padded variant while leaving the message otherwise valid. Since\\nthe unwrap key is derived from the recipient\u0027s private operation (ECDH key\\nagreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot\\npass, and the decryption fails with integrity failure.\\n\\nThe write is a fixed-size (8-byte), fixed-value (zero) heap overflow\\nimmediately past the allocation, requires no special configuration, and is\\nreachable from the public CMS_decrypt() function. The consequence is\\na heap corruption leading to a Denial of Service. The fix in the CMS code\\nsizes the unwrap output buffer for the worst case so a failed unwrap cannot\\nwrite past the allocation.\\n\\nFIPS impact: no\\n\\nAs the CMS code lives outside the FIPS module boundary, no FIPS\\nmodules are affected by this CVE.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based\u003cbr\u003eon querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive\u003cbr\u003ecan write and cleanse more bytes than that query reports, causing an 8-byte\u003cbr\u003eout-of-bounds heap write.\u003cbr\u003e\u003cbr\u003eImpact summary: An attacker who supplies a crafted CMS message can trigger a\u003cbr\u003edeterministic 8-byte out-of-bounds heap write when the victim decrypts it\u003cbr\u003ewith CMS_decrypt(), corrupting the heap and typically resulting in a Denial\u003cbr\u003eof Service.\u003cbr\u003e\u003cbr\u003eCWE: CWE-787: Out-of-bounds Write\u003cbr\u003e\u003cbr\u003eDescription: The key-wrap OID is potentially attacker-controlled on the wire.\u003cbr\u003eCMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers.\u003cbr\u003eAn attacker can take a legitimate message and change a single OID byte to\u003cbr\u003eselect the padded variant while leaving the message otherwise valid. Since\u003cbr\u003ethe unwrap key is derived from the recipient\u0027s private operation (ECDH key\u003cbr\u003eagreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot\u003cbr\u003epass, and the decryption fails with integrity failure.\u003cbr\u003e\u003cbr\u003eThe write is a fixed-size (8-byte), fixed-value (zero) heap overflow\u003cbr\u003eimmediately past the allocation, requires no special configuration, and is\u003cbr\u003ereachable from the public CMS_decrypt() function. The consequence is\u003cbr\u003ea heap corruption leading to a Denial of Service. The fix in the CMS code\u003cbr\u003esizes the unwrap output buffer for the worst case so a failed unwrap cannot\u003cbr\u003ewrite past the allocation.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003e\u003cbr\u003eAs the CMS code lives outside the FIPS module boundary, no FIPS\u003cbr\u003emodules are affected by this CVE.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-787\", \"description\": \"CWE-787 Out-of-bounds Write\"}]}], \"providerMetadata\": {\"orgId\": \"3a12439a-ef3a-4c79-92e6-6081a721f1e5\", \"shortName\": \"openssl\", \"dateUpdated\": \"2026-08-25T12:59:34.428Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-63072\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-25T14:29:55.378Z\", \"dateReserved\": \"2026-07-15T13:10:26.188Z\", \"assignerOrgId\": \"3a12439a-ef3a-4c79-92e6-6081a721f1e5\", \"datePublished\": \"2026-08-25T12:59:34.428Z\", \"assignerShortName\": \"openssl\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

alsa-2026:67154

Vulnerability from osv_almalinux

Published

2026-09-14 00:00

Modified

2026-09-15 08:31

Summary

Important: openssl security, bug fix, and enhancement update

Details

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library.

Security Fix(es):

openssl: OpenSSL: Denial of Service via unbounded memory growth in QUIC server (CVE-2026-14456)
openssl: QUIC server may trigger double free when processing INITIAL packet (CVE-2026-18798)
openssl: heap buffer overflow in CMS key unwrapping (CVE-2026-63072)
openssl: invalid pointer dereference in CMP server via crafted protectionAlg (CVE-2026-63076)
openssl: RPK server signature algorithm selection can dereference a missing certificate (CVE-2026-14457)
openssl: excessive memory use buffering DTLS records for a future epoch (CVE-2026-54874)
openssl: untrusted sender DN used as format string in CMP response validation (CVE-2026-63073)
openssl: CMP indefinite cache growth of ExtraCerts (CVE-2026-63074)
openssl: QUIC ACK-only packet retention can cause memory exhaustion (CVE-2026-63075)

Bug Fix(es) and Enhancement(s):

openssl: HollowByte remote memory-exhaustion DoS fix may be missing [AlmaLinux 10.2.z] (JIRA:AlmaLinux-212362)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

URL

Type

	https://access.redhat.com/errata/RHSA-2026:67154	ADVISORY
	https://access.redhat.com/security/cve/CVE-2026-14456	REPORT
	https://access.redhat.com/security/cve/CVE-2026-14457	REPORT
	https://access.redhat.com/security/cve/CVE-2026-18798	REPORT
	https://access.redhat.com/security/cve/CVE-2026-54874	REPORT
	https://access.redhat.com/security/cve/CVE-2026-63072	REPORT
	https://access.redhat.com/security/cve/CVE-2026-63073	REPORT
	https://access.redhat.com/security/cve/CVE-2026-63074	REPORT
	https://access.redhat.com/security/cve/CVE-2026-63075	REPORT
	https://access.redhat.com/security/cve/CVE-2026-63076	REPORT
	https://bugzilla.redhat.com/2515348	REPORT
	https://bugzilla.redhat.com/2517559	REPORT
	https://bugzilla.redhat.com/2517560	REPORT
	https://bugzilla.redhat.com/2517561	REPORT
	https://bugzilla.redhat.com/2517562	REPORT
	https://bugzilla.redhat.com/2517564	REPORT
	https://bugzilla.redhat.com/2517565	REPORT
	https://bugzilla.redhat.com/2517566	REPORT
	https://bugzilla.redhat.com/2517570	REPORT
	https://errata.almalinux.org/10/ALSA-2026-67154.html	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "openssl"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:3.5.8-1.el10_2.alma.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "openssl-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:3.5.8-1.el10_2.alma.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "openssl-libs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:3.5.8-1.el10_2.alma.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "openssl-perl"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:3.5.8-1.el10_2.alma.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library.  \n\nSecurity Fix(es):  \n\n  * openssl: OpenSSL: Denial of Service via unbounded memory growth in QUIC server (CVE-2026-14456)\n  * openssl: QUIC server may trigger double free when processing INITIAL packet (CVE-2026-18798)\n  * openssl: heap buffer overflow in CMS key unwrapping (CVE-2026-63072)\n  * openssl: invalid pointer dereference in CMP server via crafted protectionAlg (CVE-2026-63076)\n  * openssl: RPK server signature algorithm selection can dereference a missing certificate (CVE-2026-14457)\n  * openssl: excessive memory use buffering DTLS records for a future epoch (CVE-2026-54874)\n  * openssl: untrusted sender DN used as format string in CMP response validation (CVE-2026-63073)\n  * openssl: CMP indefinite cache growth of ExtraCerts (CVE-2026-63074)\n  * openssl: QUIC ACK-only packet retention can cause memory exhaustion (CVE-2026-63075)\n\n\nBug Fix(es) and Enhancement(s):  \n\n  * openssl: HollowByte remote memory-exhaustion DoS fix may be missing [AlmaLinux 10.2.z] (JIRA:AlmaLinux-212362)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
  "id": "ALSA-2026:67154",
  "modified": "2026-09-15T08:31:16Z",
  "published": "2026-09-14T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:67154"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-14456"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-14457"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-18798"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-54874"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-63072"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-63073"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-63074"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-63075"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-63076"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2515348"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2517559"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2517560"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2517561"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2517562"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2517564"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2517565"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2517566"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2517570"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/10/ALSA-2026-67154.html"
    }
  ],
  "related": [
    "CVE-2026-14456",
    "CVE-2026-18798",
    "CVE-2026-63072",
    "CVE-2026-63076",
    "CVE-2026-14457",
    "CVE-2026-54874",
    "CVE-2026-63073",
    "CVE-2026-63074",
    "CVE-2026-63075"
  ],
  "summary": "Important: openssl security, bug fix, and enhancement update"
}

alsa-2026:67165

Vulnerability from osv_almalinux

Published

2026-09-14 00:00

Modified

2026-09-15 08:35

Summary

Important: openssl security, bug fix, and enhancement update

Details

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library.

Security Fix(es):

openssl: OpenSSL: Denial of Service via unbounded memory growth in QUIC server (CVE-2026-14456)
openssl: QUIC server may trigger double free when processing INITIAL packet (CVE-2026-18798)
openssl: heap buffer overflow in CMS key unwrapping (CVE-2026-63072)
openssl: invalid pointer dereference in CMP server via crafted protectionAlg (CVE-2026-63076)
openssl: RPK server signature algorithm selection can dereference a missing certificate (CVE-2026-14457)
openssl: excessive memory use buffering DTLS records for a future epoch (CVE-2026-54874)
openssl: untrusted sender DN used as format string in CMP response validation (CVE-2026-63073)
openssl: CMP indefinite cache growth of ExtraCerts (CVE-2026-63074)
openssl: QUIC ACK-only packet retention can cause memory exhaustion (CVE-2026-63075)

Bug Fix(es) and Enhancement(s):

openssl: HollowByte remote memory-exhaustion DoS fix may be missing [AlmaLinux 9.8.z] (JIRA:AlmaLinux-232828)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

URL

Type

	https://access.redhat.com/errata/RHSA-2026:67165	ADVISORY
	https://access.redhat.com/security/cve/CVE-2026-14456	REPORT
	https://access.redhat.com/security/cve/CVE-2026-14457	REPORT
	https://access.redhat.com/security/cve/CVE-2026-18798	REPORT
	https://access.redhat.com/security/cve/CVE-2026-54874	REPORT
	https://access.redhat.com/security/cve/CVE-2026-63072	REPORT
	https://access.redhat.com/security/cve/CVE-2026-63073	REPORT
	https://access.redhat.com/security/cve/CVE-2026-63074	REPORT
	https://access.redhat.com/security/cve/CVE-2026-63075	REPORT
	https://access.redhat.com/security/cve/CVE-2026-63076	REPORT
	https://bugzilla.redhat.com/2515348	REPORT
	https://bugzilla.redhat.com/2517559	REPORT
	https://bugzilla.redhat.com/2517560	REPORT
	https://bugzilla.redhat.com/2517561	REPORT
	https://bugzilla.redhat.com/2517562	REPORT
	https://bugzilla.redhat.com/2517564	REPORT
	https://bugzilla.redhat.com/2517565	REPORT
	https://bugzilla.redhat.com/2517566	REPORT
	https://bugzilla.redhat.com/2517570	REPORT
	https://errata.almalinux.org/9/ALSA-2026-67165.html	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "openssl"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:3.5.8-1.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "openssl-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:3.5.8-1.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "openssl-libs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:3.5.8-1.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "openssl-perl"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:3.5.8-1.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library.  \n\nSecurity Fix(es):  \n\n  * openssl: OpenSSL: Denial of Service via unbounded memory growth in QUIC server (CVE-2026-14456)\n  * openssl: QUIC server may trigger double free when processing INITIAL packet (CVE-2026-18798)\n  * openssl: heap buffer overflow in CMS key unwrapping (CVE-2026-63072)\n  * openssl: invalid pointer dereference in CMP server via crafted protectionAlg (CVE-2026-63076)\n  * openssl: RPK server signature algorithm selection can dereference a missing certificate (CVE-2026-14457)\n  * openssl: excessive memory use buffering DTLS records for a future epoch (CVE-2026-54874)\n  * openssl: untrusted sender DN used as format string in CMP response validation (CVE-2026-63073)\n  * openssl: CMP indefinite cache growth of ExtraCerts (CVE-2026-63074)\n  * openssl: QUIC ACK-only packet retention can cause memory exhaustion (CVE-2026-63075)\n\n\nBug Fix(es) and Enhancement(s):  \n\n  * openssl: HollowByte remote memory-exhaustion DoS fix may be missing [AlmaLinux 9.8.z] (JIRA:AlmaLinux-232828)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
  "id": "ALSA-2026:67165",
  "modified": "2026-09-15T08:35:13Z",
  "published": "2026-09-14T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:67165"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-14456"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-14457"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-18798"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-54874"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-63072"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-63073"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-63074"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-63075"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-63076"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2515348"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2517559"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2517560"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2517561"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2517562"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2517564"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2517565"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2517566"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2517570"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/9/ALSA-2026-67165.html"
    }
  ],
  "related": [
    "CVE-2026-14456",
    "CVE-2026-18798",
    "CVE-2026-63072",
    "CVE-2026-63076",
    "CVE-2026-14457",
    "CVE-2026-54874",
    "CVE-2026-63073",
    "CVE-2026-63074",
    "CVE-2026-63075"
  ],
  "summary": "Important: openssl security, bug fix, and enhancement update"
}

BDU:2026-13717

Vulnerability from fstec - Published: 18.06.2026

Title

Уязвимость функции CMS_decrypt() библиотеки OpenSSL, позволяющая нарушителю вызвать отказ в обслуживании

Description

Уязвимость функции CMS_decrypt() библиотеки OpenSSL связана с выходом операции за границы буфера в памяти. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, вызвать отказ в обслуживании

Severity


                    
                      AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vendor

OpenSSL Software Foundation

Software Name

OpenSSL

Software Version

от 1.1.1 до 1.1.1zi (OpenSSL), от 3.0.0 до 3.0.22 (OpenSSL), от 3.4.0 до 3.4.7 (OpenSSL), от 3.5.0 до 3.5.8 (OpenSSL), от 3.6.0 до 3.6.4 (OpenSSL), от 4.0.0 до 4.0.2 (OpenSSL)

Possible Mitigations

Использование рекомендаций: https://github.com/openssl/openssl/commit/2a3dac874c8057c1f0186849bf1ede1ae7b6b756 https://github.com/openssl/openssl/commit/87784ad619af36b8807c2044b3940006fccc1e42 https://github.com/openssl/openssl/commit/9530a5fd1aacaeccdced4478ea2340a480613335 https://github.com/openssl/openssl/commit/9ec2f6d2ae2bcad907cf7ee38584855bafe4979a https://github.com/openssl/openssl/commit/a0c8ec557d9cac078f032d76cdf684fe743eb382 https://openssl-library.org/news/secadv/20260825.txt

Reference

https://github.com/openssl/openssl/commit/2a3dac874c8057c1f0186849bf1ede1ae7b6b756 https://github.com/openssl/openssl/commit/87784ad619af36b8807c2044b3940006fccc1e42 https://github.com/openssl/openssl/commit/9530a5fd1aacaeccdced4478ea2340a480613335 https://github.com/openssl/openssl/commit/9ec2f6d2ae2bcad907cf7ee38584855bafe4979a https://github.com/openssl/openssl/commit/a0c8ec557d9cac078f032d76cdf684fe743eb382 https://openssl-library.org/news/secadv/20260825.txt https://www.strix.ai/cve/CVE-2026-63072

CWE

CWE-787

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
  "CVSS 3.0": "AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "OpenSSL Software Foundation",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "\u043e\u0442 1.1.1 \u0434\u043e 1.1.1zi (OpenSSL), \u043e\u0442 3.0.0 \u0434\u043e 3.0.22 (OpenSSL), \u043e\u0442 3.4.0 \u0434\u043e 3.4.7 (OpenSSL), \u043e\u0442 3.5.0 \u0434\u043e 3.5.8 (OpenSSL), \u043e\u0442 3.6.0 \u0434\u043e 3.6.4 (OpenSSL), \u043e\u0442 4.0.0 \u0434\u043e 4.0.2 (OpenSSL)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439:\nhttps://github.com/openssl/openssl/commit/2a3dac874c8057c1f0186849bf1ede1ae7b6b756\nhttps://github.com/openssl/openssl/commit/87784ad619af36b8807c2044b3940006fccc1e42\nhttps://github.com/openssl/openssl/commit/9530a5fd1aacaeccdced4478ea2340a480613335\nhttps://github.com/openssl/openssl/commit/9ec2f6d2ae2bcad907cf7ee38584855bafe4979a\nhttps://github.com/openssl/openssl/commit/a0c8ec557d9cac078f032d76cdf684fe743eb382\nhttps://openssl-library.org/news/secadv/20260825.txt",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "18.06.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "02.09.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "02.09.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-13717",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2026-63072",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "OpenSSL",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": null,
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 CMS_decrypt() \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 OpenSSL, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u0417\u0430\u043f\u0438\u0441\u044c \u0437\u0430 \u0433\u0440\u0430\u043d\u0438\u0446\u0430\u043c\u0438 \u0431\u0443\u0444\u0435\u0440\u0430 (CWE-787)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 CMS_decrypt() \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 OpenSSL \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u0432\u044b\u0445\u043e\u0434\u043e\u043c \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 \u0437\u0430 \u0433\u0440\u0430\u043d\u0438\u0446\u044b \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 \u043f\u0430\u043c\u044f\u0442\u0438. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e, \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u0445",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://github.com/openssl/openssl/commit/2a3dac874c8057c1f0186849bf1ede1ae7b6b756\nhttps://github.com/openssl/openssl/commit/87784ad619af36b8807c2044b3940006fccc1e42\nhttps://github.com/openssl/openssl/commit/9530a5fd1aacaeccdced4478ea2340a480613335\nhttps://github.com/openssl/openssl/commit/9ec2f6d2ae2bcad907cf7ee38584855bafe4979a\nhttps://github.com/openssl/openssl/commit/a0c8ec557d9cac078f032d76cdf684fe743eb382\nhttps://openssl-library.org/news/secadv/20260825.txt\nhttps://www.strix.ai/cve/CVE-2026-63072",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0435 \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u043e \u0437\u0430\u0449\u0438\u0442\u044b",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-787",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 7,8)\n\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.1 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 7,5)"
}

CERTFR-2026-AVI-1079

Vulnerability from certfr_avis - Published: 2026-08-26 - Updated: 2026-08-26

De multiples vulnérabilités ont été découvertes dans OpenSSL. Elles permettent à un attaquant de provoquer un déni de service à distance et un contournement de la politique de sécurité.

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 3.6.x antérieures à 3.6.4
OpenSSL	OpenSSL	OpenSSL versions 3.4.x antérieures à 3.4.7
OpenSSL	OpenSSL	OpenSSL versions 3.5.x antérieures à 3.5.8
OpenSSL	OpenSSL	OpenSSL versions 3.0.x antérieures à 3.0.22
OpenSSL	OpenSSL	OpenSSL versions 1.0.2x antérieures à 1.0.2zr
OpenSSL	OpenSSL	OpenSSL versions 1.1.1x antérieures à 1.1.1zi
OpenSSL	OpenSSL	OpenSSL versions 4.0.x antérieures à 4.0.2

References

Title

Publication Time

FKIE_CVE-2026-63072

Vulnerability from fkie_nvd - Published: 2026-08-25 13:19 - Updated: 2026-09-11 21:16

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

URL	Tags
openssl-security@openssl.org	https://github.com/openssl/openssl/commit/2a3dac874c8057c1f0186849bf1ede1ae7b6b756	Patch
openssl-security@openssl.org	https://github.com/openssl/openssl/commit/87784ad619af36b8807c2044b3940006fccc1e42	Patch
openssl-security@openssl.org	https://github.com/openssl/openssl/commit/9530a5fd1aacaeccdced4478ea2340a480613335	Patch
openssl-security@openssl.org	https://github.com/openssl/openssl/commit/9ec2f6d2ae2bcad907cf7ee38584855bafe4979a	Patch
openssl-security@openssl.org	https://github.com/openssl/openssl/commit/a0c8ec557d9cac078f032d76cdf684fe743eb382	Patch
openssl-security@openssl.org	https://openssl-library.org/news/secadv/20260825.txt	Vendor Advisory

Impacted products

Vendor	Product	Version
openssl	openssl	*
openssl	openssl	*
openssl	openssl	*
openssl	openssl	*
openssl	openssl	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "OpenSSL",
          "vendor": "OpenSSL",
          "versions": [
            {
              "lessThan": "4.0.2",
              "status": "affected",
              "version": "4.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "3.6.4",
              "status": "affected",
              "version": "3.6.0",
              "versionType": "semver"
            },
            {
              "lessThan": "3.5.8",
              "status": "affected",
              "version": "3.5.0",
              "versionType": "semver"
            },
            {
              "lessThan": "3.4.7",
              "status": "affected",
              "version": "3.4.0",
              "versionType": "semver"
            },
            {
              "lessThan": "3.0.22",
              "status": "affected",
              "version": "3.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.1.1zi",
              "status": "affected",
              "version": "1.1.1",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "openssl-security@openssl.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5DAAFBD8-3DEE-4F6B-8D83-02966005168A",
              "versionEndExcluding": "3.0.22",
              "versionStartIncluding": "3.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "216D6529-561A-4684-A886-50954FBEBFB2",
              "versionEndExcluding": "3.4.7",
              "versionStartIncluding": "3.4.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C5BB9E95-09B6-4163-B51C-D62B528A04DA",
              "versionEndExcluding": "3.5.8",
              "versionStartIncluding": "3.5.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B1416826-F2F1-4EA8-9FB2-A56B0DA923C1",
              "versionEndExcluding": "3.6.4",
              "versionStartIncluding": "3.6.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "63B8F45B-E44F-481C-815D-AF9CA89C48F6",
              "versionEndExcluding": "4.0.2",
              "versionStartIncluding": "4.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based\non querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive\ncan write and cleanse more bytes than that query reports, causing an 8-byte\nout-of-bounds heap write.\n\nImpact summary: An attacker who supplies a crafted CMS message can trigger a\ndeterministic 8-byte out-of-bounds heap write when the victim decrypts it\nwith CMS_decrypt(), corrupting the heap and typically resulting in a Denial\nof Service.\n\nCWE: CWE-787: Out-of-bounds Write\n\nDescription: The key-wrap OID is potentially attacker-controlled on the wire.\nCMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers.\nAn attacker can take a legitimate message and change a single OID byte to\nselect the padded variant while leaving the message otherwise valid. Since\nthe unwrap key is derived from the recipient\u0027s private operation (ECDH key\nagreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot\npass, and the decryption fails with integrity failure.\n\nThe write is a fixed-size (8-byte), fixed-value (zero) heap overflow\nimmediately past the allocation, requires no special configuration, and is\nreachable from the public CMS_decrypt() function. The consequence is\na heap corruption leading to a Denial of Service. The fix in the CMS code\nsizes the unwrap output buffer for the worst case so a failed unwrap cannot\nwrite past the allocation.\n\nFIPS impact: no\n\nAs the CMS code lives outside the FIPS module boundary, no FIPS\nmodules are affected by this CVE."
    }
  ],
  "id": "CVE-2026-63072",
  "lastModified": "2026-09-11T21:16:34.287",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-63072",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-25T14:29:50.344129Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-25T13:19:26.010",
  "references": [
    {
      "source": "openssl-security@openssl.org",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/openssl/openssl/commit/2a3dac874c8057c1f0186849bf1ede1ae7b6b756"
    },
    {
      "source": "openssl-security@openssl.org",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/openssl/openssl/commit/87784ad619af36b8807c2044b3940006fccc1e42"
    },
    {
      "source": "openssl-security@openssl.org",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/openssl/openssl/commit/9530a5fd1aacaeccdced4478ea2340a480613335"
    },
    {
      "source": "openssl-security@openssl.org",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/openssl/openssl/commit/9ec2f6d2ae2bcad907cf7ee38584855bafe4979a"
    },
    {
      "source": "openssl-security@openssl.org",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/openssl/openssl/commit/a0c8ec557d9cac078f032d76cdf684fe743eb382"
    },
    {
      "source": "openssl-security@openssl.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://openssl-library.org/news/secadv/20260825.txt"
    }
  ],
  "sourceIdentifier": "openssl-security@openssl.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "openssl-security@openssl.org",
      "type": "Secondary"
    }
  ]
}

GHSA-WP5F-6Q39-Q2F4

Vulnerability from github – Published: 2026-08-25 15:32 – Updated: 2026-08-25 15:32

Details

Impact summary: An attacker who supplies a crafted CMS message can trigger a deterministic 8-byte out-of-bounds heap write when the victim decrypts it with CMS_decrypt(), corrupting the heap and typically resulting in a Denial of Service.

CWE: CWE-787: Out-of-bounds Write

Description: The key-wrap OID is potentially attacker-controlled on the wire. CMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers. An attacker can take a legitimate message and change a single OID byte to select the padded variant while leaving the message otherwise valid. Since the unwrap key is derived from the recipient's private operation (ECDH key agreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot pass, and the decryption fails with integrity failure.

The write is a fixed-size (8-byte), fixed-value (zero) heap overflow immediately past the allocation, requires no special configuration, and is reachable from the public CMS_decrypt() function. The consequence is a heap corruption leading to a Denial of Service. The fix in the CMS code sizes the unwrap output buffer for the worst case so a failed unwrap cannot write past the allocation.

FIPS impact: no

As the CMS code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE.

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2026-63072"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-25T13:19:26Z",
    "severity": "HIGH"
  },
  "details": "Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based\non querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive\ncan write and cleanse more bytes than that query reports, causing an 8-byte\nout-of-bounds heap write.\n\nImpact summary: An attacker who supplies a crafted CMS message can trigger a\ndeterministic 8-byte out-of-bounds heap write when the victim decrypts it\nwith CMS_decrypt(), corrupting the heap and typically resulting in a Denial\nof Service.\n\nCWE: CWE-787: Out-of-bounds Write\n\nDescription: The key-wrap OID is potentially attacker-controlled on the wire.\nCMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers.\nAn attacker can take a legitimate message and change a single OID byte to\nselect the padded variant while leaving the message otherwise valid. Since\nthe unwrap key is derived from the recipient\u0027s private operation (ECDH key\nagreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot\npass, and the decryption fails with integrity failure.\n\nThe write is a fixed-size (8-byte), fixed-value (zero) heap overflow\nimmediately past the allocation, requires no special configuration, and is\nreachable from the public CMS_decrypt() function. The consequence is\na heap corruption leading to a Denial of Service. The fix in the CMS code\nsizes the unwrap output buffer for the worst case so a failed unwrap cannot\nwrite past the allocation.\n\nFIPS impact: no\n\nAs the CMS code lives outside the FIPS module boundary, no FIPS\nmodules are affected by this CVE.",
  "id": "GHSA-wp5f-6q39-q2f4",
  "modified": "2026-08-25T15:32:59Z",
  "published": "2026-08-25T15:32:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63072"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openssl/openssl/commit/2a3dac874c8057c1f0186849bf1ede1ae7b6b756"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openssl/openssl/commit/87784ad619af36b8807c2044b3940006fccc1e42"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openssl/openssl/commit/9530a5fd1aacaeccdced4478ea2340a480613335"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openssl/openssl/commit/9ec2f6d2ae2bcad907cf7ee38584855bafe4979a"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openssl/openssl/commit/a0c8ec557d9cac078f032d76cdf684fe743eb382"
    },
    {
      "type": "WEB",
      "url": "https://openssl-library.org/news/secadv/20260825.txt"
    }
  ],
  "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"
    }
  ]
}

MSRC_CVE-2026-63072

Vulnerability from csaf_microsoft - Published: 2026-08-27 01:13 - Updated: 2026-09-13 01:50

Summary

Heap Buffer Overflow in CMS Key Unwrapping

Scope

1 vulnerability in this advisory, including CVE-2026-63072.

CVE-2026-63072

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 4 products Known affected: 9 products Known not affected: 1 product

Open the full advisory

OPENSUSE-SU-2026:11623-1

Vulnerability from csaf_opensuse - Published: 2026-08-27 00:00 - Updated: 2026-08-27 00:00

Summary

libopenssl-3-devel-3.5.3-8.1 on GA media

Severity

Moderate

Scope

11 vulnerabilities in this advisory, including CVE-2026-63072.

CVE-2026-63072

8.2 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Recommended: 40 products

Open the full advisory

RHSA-2026:59635

Vulnerability from csaf_redhat - Published: 2026-08-25 21:50 - Updated: 2026-09-14 07:58

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Severity

Moderate

Scope

8 vulnerabilities in this advisory, including CVE-2026-63072.

CVE-2026-63072

A flaw was found in OpenSSL. A crafted CMS (Cryptographic Message Syntax) message can cause an 8-byte out-of-bounds heap write when it is decrypted with CMS_decrypt(). This issue occurs because the CMS decryption process incorrectly sizes the key-unwrap output buffer when using the AES-WRAP-PAD unwrap primitive. This can lead to memory corruption, resulting in a denial of service.

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 3 products

https://access.redhat.com/errata/RHSA-2026:59635

Open the full advisory

RHSA-2026:59641

Vulnerability from csaf_redhat - Published: 2026-08-25 21:57 - Updated: 2026-09-14 07:59

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Severity

Moderate

Scope

8 vulnerabilities in this advisory, including CVE-2026-63072.

CVE-2026-63072

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 3 products

https://access.redhat.com/errata/RHSA-2026:59641

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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CVE-2026-63072 (GCVE-0-2026-63072)

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Vulnerability from osv_almalinux

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