USN-8865-1 (UBUNTU-CVE-2026-54874)

Vulnerability from osv_ubuntu – Published: 2026-10-05 11:06 – Updated: 2026-10-05 11:06 – Source website
VLAI
Summary
edk2 vulnerabilities
Details

It was discovered that EDK II incorrectly handled CMS key unwrapping in the embedded OpenSSL library. An attacker could possibly use this issue to cause a heap buffer overflow, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-63072)

It was discovered that EDK II incorrectly handled CMP protection verification in the embedded OpenSSL library. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-63076)

It was discovered that EDK II incorrectly buffered DTLS records in the embedded OpenSSL library. A remote attacker could possibly use this issue to cause EDK II to consume excessive memory, resulting in a denial of service. (CVE-2026-54874)

It was discovered that EDK II incorrectly verified AEAD tags in the embedded OpenSSL library. An attacker could possibly use this issue to cause EDK II to accept forged messages. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-75803)

References
To clipboard 

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  ],
  "aliases": [],
  "details": "It was discovered that EDK II incorrectly handled CMS key unwrapping in the\nembedded OpenSSL library. An attacker could possibly use this issue to\ncause a heap buffer overflow, resulting in a denial of service. This issue\nonly affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu\n24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-63072)\n\nIt was discovered that EDK II incorrectly handled CMP protection\nverification in the embedded OpenSSL library. An attacker could possibly\nuse this issue to cause a denial of service. This issue only affected\nUbuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-63076)\n\nIt was discovered that EDK II incorrectly buffered DTLS records in the\nembedded OpenSSL library. A remote attacker could possibly use this issue\nto cause EDK II to consume excessive memory, resulting in a denial of\nservice. (CVE-2026-54874)\n\nIt was discovered that EDK II incorrectly verified AEAD tags in the\nembedded OpenSSL library. An attacker could possibly use this issue to\ncause EDK II to accept forged messages. This issue only affected Ubuntu\n24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-75803)",
  "id": "USN-8865-1",
  "modified": "2026-10-05T11:06:16Z",
  "published": "2026-10-05T11:06:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8865-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-54874"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-63072"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-63076"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-75803"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "edk2 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-54874",
    "UBUNTU-CVE-2026-63072",
    "UBUNTU-CVE-2026-63076",
    "UBUNTU-CVE-2026-75803"
  ]
}



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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.