{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-23456",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-23456",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-03T15:15:37.534Z",
    "updatedAt": "2026-10-19T18:35:44.721Z",
    "importedAt": "2026-10-24T01:58:02.025Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case\n\nIn decode_int(), the CONS case calls get_bits(bs, 2) to read a length\nvalue, then calls get_uint(bs, len) without checking that len bytes\nremain in the buffer. The existing boundary check only validates the\n2 bits for get_bits(), not the subsequent 1-4 bytes that get_uint()\nreads. This allows a malformed H.323/RAS packet to cause a 1-4 byte\nslab-out-of-bounds read.\n\nAdd a boundary check for len bytes after get_bits() and before\nget_uint().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "5e35941d990123f155b02d5663e51a24f816b6f3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a2cd54b9348e485d338b3c132338a4410c99afaf"
            },
            {
              "version": "5e35941d990123f155b02d5663e51a24f816b6f3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c95dc674ebf01ecfb40388b6facfc89b81fed3b7"
            },
            {
              "version": "5e35941d990123f155b02d5663e51a24f816b6f3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "41b417ff73a24b2c68134992cc44c88db27f482d"
            },
            {
              "version": "5e35941d990123f155b02d5663e51a24f816b6f3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "52235bf88159a1ef16434ab49e47e99c8a09ab20"
            },
            {
              "version": "5e35941d990123f155b02d5663e51a24f816b6f3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "774a434f8c9c8602a976b2536f65d0172a07f4d2"
            },
            {
              "version": "5e35941d990123f155b02d5663e51a24f816b6f3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6bce72daeccca9aa1746e92d6c3d4784e71f2ebb"
            },
            {
              "version": "5e35941d990123f155b02d5663e51a24f816b6f3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fb6c3596823ec5dd09c2123340330d7448f51a59"
            },
            {
              "version": "5e35941d990123f155b02d5663e51a24f816b6f3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1e3a3593162c96e8a8de48b1e14f60c3b57fca8a"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.17",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.17"
            },
            {
              "version": "5.10.253",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.203",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.167",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.130",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.78",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.20",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}