{
  "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-2025-40187",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-40187",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-11-12T21:56:29.504Z",
    "updatedAt": "2026-10-15T22:02:40.120Z",
    "importedAt": "2026-10-24T01:57:34.152Z",
    "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": "net/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce()\n\nIf new_asoc->peer.adaptation_ind=0 and sctp_ulpevent_make_authkey=0\nand sctp_ulpevent_make_authkey() returns 0, then the variable\nai_ev remains zero and the zero will be dereferenced\nin the sctp_ulpevent_free() function.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1014b83778c8677f1d7a57c26dc728baa801ac62"
            },
            {
              "version": "30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7f702f85df0266ed7b5bab81ba50394c92f3c928"
            },
            {
              "version": "30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "dbceedc0213e75bf3e9f9f9e2f66b10699d004fe"
            },
            {
              "version": "30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "025419f4e216a3ae0d0cec622262e98e8078c447"
            },
            {
              "version": "30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c21f45cfa4a9526b34d76b397c9ef080668b6e73"
            },
            {
              "version": "30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d0e8f1445c19b1786759ba72a38267e1449bab7e"
            },
            {
              "version": "30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "badbd79313e6591616c1b78e29a9b71efed7f035"
            },
            {
              "version": "30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2f3119686ef50319490ccaec81a575973da98815"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.17",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.17"
            },
            {
              "version": "5.4.301",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.246",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.195",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.157",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.113",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.54",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.17.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "version": "6.18",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}