{
  "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-2026-74564",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-74564",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-15T12:28:06.392Z",
    "updatedAt": "2026-10-16T19:05:56.067Z",
    "importedAt": "2026-10-24T01:58:30.346Z",
    "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: xt_hashlimit: validate hashtable supports XT_HASHLIMIT_RATE_MATCH",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: xt_hashlimit: validate hashtable supports XT_HASHLIMIT_RATE_MATCH\n\nThe XT_HASHLIMIT_RATE_MATCH flag mode changes the semantics of the\ndsthash_ent structure which represents an entry in the hashtable.  There\nis a union area which uses a different layout to express the rate match\nmode.\n\nUpdate .checkentry path to validate the XT_HASHLIMIT_RATE_MATCH mode\nflag is requested by two or more different rules that refer to the same\nhashtable. Otherwise, uninitialized access to the burst field in the\nunion is possible.\n\nReject the use of the XT_HASHLIMIT_RATE_MATCH mode flag if set on by\nrevision less than 3 too.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "bea74641e3786d51dcf1175527cc1781420961c9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "402befce5854c195058cf4bab7c78ca286068a26"
            },
            {
              "version": "bea74641e3786d51dcf1175527cc1781420961c9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "dee686b5e7f21180538ff719867702f411c8eb5c"
            },
            {
              "version": "bea74641e3786d51dcf1175527cc1781420961c9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f76ab783e7d8d33e33dd7dfa697297f70d57b0e8"
            },
            {
              "version": "bea74641e3786d51dcf1175527cc1781420961c9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "24683fea1f06bd3bd2707b99460e859bc6464c22"
            },
            {
              "version": "bea74641e3786d51dcf1175527cc1781420961c9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "32ec8d4aba2cf22e12bdc28df8c4bd833c195fc0"
            },
            {
              "version": "bea74641e3786d51dcf1175527cc1781420961c9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d186f77d18bdfb252d401ff992ca3001a6a65a0f"
            },
            {
              "version": "bea74641e3786d51dcf1175527cc1781420961c9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "06a76334243ccd875a981aa8bb46c0f931ef1e3b"
            },
            {
              "version": "bea74641e3786d51dcf1175527cc1781420961c9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "305b63e1402267459fdabb183af4527f6799eebf"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.14",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.14"
            },
            {
              "version": "5.10.265",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.216",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.183",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.151",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.103",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.44",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}