{
  "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-2026-23318",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-23318",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-03-25T10:27:12.884Z",
    "updatedAt": "2026-10-15T01:14:00.531Z",
    "importedAt": "2026-10-24T01:58:02.025Z",
    "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": "ALSA: usb-audio: Use correct version for UAC3 header validation",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Use correct version for UAC3 header validation\n\nThe entry of the validators table for UAC3 AC header descriptor is\ndefined with the wrong protocol version UAC_VERSION_2, while it should\nhave been UAC_VERSION_3.  This results in the validator never matching\nfor actual UAC3 devices (protocol == UAC_VERSION_3), causing their\nheader descriptors to bypass validation entirely.  A malicious USB\ndevice presenting a truncated UAC3 header could exploit this to cause\nout-of-bounds reads when the driver later accesses unvalidated\ndescriptor fields.\n\nThe bug was introduced in the same commit as the recently fixed UAC3\nfeature unit sub-type typo, and appears to be from the same copy-paste\nerror when the UAC3 section was created from the UAC2 section.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "57f8770620e9b51c61089751f0b5ad3dbe376ff2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "82a7d0a1b88798de1a609130080ce0c65dd869e9"
            },
            {
              "version": "57f8770620e9b51c61089751f0b5ad3dbe376ff2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8307d93e63d5f54ef10412d4db2dd551e920dee4"
            },
            {
              "version": "57f8770620e9b51c61089751f0b5ad3dbe376ff2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0dcd1ed96c03459cf14706885c9dd3c1fd8bd29f"
            },
            {
              "version": "57f8770620e9b51c61089751f0b5ad3dbe376ff2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a0c6ae2ea84528f198bf7fd0117f12fd0cf6d7cc"
            },
            {
              "version": "57f8770620e9b51c61089751f0b5ad3dbe376ff2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d3904ca40515272681ae61ad6f561c24f190957f"
            },
            {
              "version": "57f8770620e9b51c61089751f0b5ad3dbe376ff2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1e5753ff4c2e86aa88516f97a224c90a3d0b133e"
            },
            {
              "version": "57f8770620e9b51c61089751f0b5ad3dbe376ff2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "499ffd15b00dc91ac95c28f76959dfb5cdcc84d5"
            },
            {
              "version": "57f8770620e9b51c61089751f0b5ad3dbe376ff2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "54f9d645a5453d0bfece0c465d34aaf072ea99fa"
            },
            {
              "version": "17821e2fb16752f5d363fb5c3f8aab4df41b9bcc",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "bf74a46aebb1b5ab5e5f25bafa4ae0a453ba813a",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "4.19.84",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.20"
            },
            {
              "version": "5.3.11",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.4"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.4",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.4"
            },
            {
              "version": "5.10.253",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.203",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.167",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.130",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.77",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.17",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.7",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}