{
  "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-2026-52921",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-52921",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-06-24T07:14:16.533Z",
    "updatedAt": "2026-06-24T07:14:16.533Z",
    "importedAt": "2026-10-24T01:58:14.884Z",
    "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: ipset: stop hash:* range iteration at end",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ipset: stop hash:* range iteration at end\n\nThe following hash set variants:\n\nhash:ip,mark\nhash:ip,port\nhash:ip,port,ip\nhash:ip,port,net\n\niterate IPv4 ranges with a 32-bit iterator.\n\nThe iterator must stop once the last address in the requested range has\nbeen processed. Advancing it once more can move the traversal state past\nthe end of the request, so a later retry may continue from an unintended\nposition.\n\nHandle the iterator increment explicitly at the end of the loop and stop\nonce the upper bound has been processed. This keeps the existing retry\nbehaviour intact for valid ranges while preventing traversal from\ncontinuing past the original boundary.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "48596a8ddc46f96afb6a2cd72787cb15d6bb01fc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "be75218fadea22e59c8673db212f29c681bf45bb"
            },
            {
              "version": "48596a8ddc46f96afb6a2cd72787cb15d6bb01fc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "383418c20e69f5761b6ec5238f599423f4fb77fb"
            },
            {
              "version": "48596a8ddc46f96afb6a2cd72787cb15d6bb01fc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0d7b33ace701fe397e6e4de145f32e098178d901"
            },
            {
              "version": "48596a8ddc46f96afb6a2cd72787cb15d6bb01fc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c281e018af98df91827d65bec00f4956c00a1b02"
            },
            {
              "version": "48596a8ddc46f96afb6a2cd72787cb15d6bb01fc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "02f75f041a93ea045834da89cd3234f4c1d749b4"
            },
            {
              "version": "48596a8ddc46f96afb6a2cd72787cb15d6bb01fc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "952e988163c2ab9939c3db9f0f8e77af6a1bb436"
            },
            {
              "version": "48596a8ddc46f96afb6a2cd72787cb15d6bb01fc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0b530efb2cc9dbdddfd49d392e3a857f0d4ce8dc"
            },
            {
              "version": "48596a8ddc46f96afb6a2cd72787cb15d6bb01fc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0d3a282ab5f165fc207ff49ea5b6ad8f54616bd6"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.14",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.14"
            },
            {
              "version": "5.10.258",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.209",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.175",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.142",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.92",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.34",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}