{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "51bd6f291583684f495ea498984dfc22049d7fd2"
            },
            {
              "fixed": "60939bcda6f3f104ef456fdbf3cc5733c0720fb1"
            },
            {
              "fixed": "5719431ca2b5fa26560bb38f6202f8b97fa3bbb0"
            },
            {
              "fixed": "a84c6e3d188f2c6e674910929eb790634299d6d5"
            },
            {
              "fixed": "53637506884dbd5c91a89b1a3547d99d80f8ed2c"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.3.0"
            },
            {
              "fixed": "6.12.109"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.50"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81007.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmi: ipmb: validate write message length\n\nipmb_write() read message fields before validating the length byte.\n\nA zero or short write can read uninitialized stack bytes.\n\nA length smaller than the SMBus header underflows the block write length.\n\nRequire a non-empty buffer and the minimum IPMB request length.\n\nAlso require the length byte plus payload before parsing the message.",
  "id": "CVE-2026-81007",
  "modified": "2026-09-13T03:30:57.641028919Z",
  "published": "2026-09-11T19:42:58.751Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/53637506884dbd5c91a89b1a3547d99d80f8ed2c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5719431ca2b5fa26560bb38f6202f8b97fa3bbb0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/60939bcda6f3f104ef456fdbf3cc5733c0720fb1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a84c6e3d188f2c6e674910929eb790634299d6d5"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81007.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-81007"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "ipmi: ipmb: validate write message length"
}