{
  "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-2025-21826",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-21826",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-03-06T16:04:32.274Z",
    "updatedAt": "2026-10-15T01:04:36.090Z",
    "importedAt": "2026-10-24T01:57:29.455Z",
    "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_tables: reject mismatching sum of field_len with set key length",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: reject mismatching sum of field_len with set key length\n\nThe field length description provides the length of each separated key\nfield in the concatenation, each field gets rounded up to 32-bits to\ncalculate the pipapo rule width from pipapo_init(). The set key length\nprovides the total size of the key aligned to 32-bits.\n\nRegister-based arithmetics still allows for combining mismatching set\nkey length and field length description, eg. set key length 10 and field\ndescription [ 5, 4 ] leading to pipapo width of 12.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "2d4c0798a1ef8db15b3277697ac2def4eda42312",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6b467c8feac759f4c5c86d708beca2aa2b29584f"
            },
            {
              "version": "77be8c495a3f841e88b46508cc20d3d7d3289da3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5083a7ae45003456c253e981b30a43f71230b4a3"
            },
            {
              "version": "9cb084df01e198119de477ac691d682fb01e80f3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2ac254343d3cf228ae0738b2615fedf85d000752"
            },
            {
              "version": "dc45bb00e66a33de1abb29e3d587880e1d4d9a7e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "82e491e085719068179ff6a5466b7387cc4bbf32"
            },
            {
              "version": "3ce67e3793f48c1b9635beb9bb71116ca1e51b58",
              "status": "affected",
              "versionType": "git",
              "lessThan": "49b7182b97bafbd5645414aff054b4a65d05823d"
            },
            {
              "version": "3ce67e3793f48c1b9635beb9bb71116ca1e51b58",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ab50d0eff4a939d20c37721fd9766347efcdb6f6"
            },
            {
              "version": "3ce67e3793f48c1b9635beb9bb71116ca1e51b58",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1b9335a8000fb70742f7db10af314104b6ace220"
            },
            {
              "version": "ff67e3e488090908dc015ba04d7407d8bd467f7e",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.10.209",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.235"
            },
            {
              "version": "5.15.148",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.179"
            },
            {
              "version": "6.1.75",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1.129"
            },
            {
              "version": "6.6.14",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.76"
            },
            {
              "version": "6.7.2",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.8"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.8",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.8"
            },
            {
              "version": "5.10.235",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.179",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.129",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.76",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.13",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.13.2",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.13.*"
            },
            {
              "version": "6.14",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}