{
  "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-2026-52928",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-52928",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-06-24T07:14:21.367Z",
    "updatedAt": "2026-10-15T01:21:51.788Z",
    "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": "af_unix: Reject SIOCATMARK on non-stream sockets",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\naf_unix: Reject SIOCATMARK on non-stream sockets\n\nSIOCATMARK reports whether the receive queue is at the urgent mark for\nMSG_OOB.\n\nIn AF_UNIX, MSG_OOB is supported only for SOCK_STREAM sockets.\nSOCK_DGRAM and SOCK_SEQPACKET reject MSG_OOB in sendmsg() and recvmsg(),\nso they should not support SIOCATMARK either.\n\nReturn -EOPNOTSUPP for non-stream sockets before checking the receive\nqueue.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "314001f0bf927015e459c9d387d62a231fe93af3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ec123873fdc83e7244c8ed6d17b8f8ea6c416a67"
            },
            {
              "version": "314001f0bf927015e459c9d387d62a231fe93af3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f085971de6d6b8ef946a5e0bcd73ff24509a0f85"
            },
            {
              "version": "314001f0bf927015e459c9d387d62a231fe93af3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b741c9c6ef59f17c1f104ddf1217ef77f79ed29b"
            },
            {
              "version": "314001f0bf927015e459c9d387d62a231fe93af3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "645b1ed3259af38b7814242a420bc2081bdd1eb6"
            },
            {
              "version": "314001f0bf927015e459c9d387d62a231fe93af3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c34c41446acf6c0d13b5b06c809be11e0f7f2729"
            },
            {
              "version": "314001f0bf927015e459c9d387d62a231fe93af3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3147ddf5a41c20c45c2eb69e00b62f10f822056a"
            },
            {
              "version": "314001f0bf927015e459c9d387d62a231fe93af3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d119775f2bad827edc28071c061fdd4a91f889a5"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.15",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.15"
            },
            {
              "version": "5.15.211",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.177",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.144",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.88",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.30",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.7",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}