{
  "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-2026-31747",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-31747",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-05-01T14:14:40.844Z",
    "updatedAt": "2026-05-11T22:14:59.031Z",
    "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": "comedi: me4000: Fix potential overrun of firmware buffer",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ncomedi: me4000: Fix potential overrun of firmware buffer\n\n`me4000_xilinx_download()` loads the firmware that was requested by\n`request_firmware()`.  It is possible for it to overrun the source\nbuffer because it blindly trusts the file format.  It reads a data\nstream length from the first 4 bytes into variable `file_length` and\nreads the data stream contents of length `file_length` from offset 16\nonwards.\n\nAdd a test to ensure that the supplied firmware is long enough to\ncontain the header and the data stream.  On failure, log an error and\nreturn `-EINVAL`.\n\nNote: The firmware loading was totally broken before commit ac584af59945\n(\"staging: comedi: me4000: fix firmware downloading\"), but that is the\nmost sensible target for this fix.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "ac584af599452748187cf6d7865b1607c54ee443",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8ddfe6495c245226a30d8b36e2f4a7aa7712e8d6"
            },
            {
              "version": "ac584af599452748187cf6d7865b1607c54ee443",
              "status": "affected",
              "versionType": "git",
              "lessThan": "64b24b713e1a3ea6624480594b4f8c2ff86502f2"
            },
            {
              "version": "ac584af599452748187cf6d7865b1607c54ee443",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f72b5567f7c117b46b4058dc6a0c7554f8565561"
            },
            {
              "version": "ac584af599452748187cf6d7865b1607c54ee443",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1603dd471f47762e9d1f52304edb3e49a7e62655"
            },
            {
              "version": "ac584af599452748187cf6d7865b1607c54ee443",
              "status": "affected",
              "versionType": "git",
              "lessThan": "99f31aa98ab6e3805c455b65bcd01b3d48bdf1a5"
            },
            {
              "version": "ac584af599452748187cf6d7865b1607c54ee443",
              "status": "affected",
              "versionType": "git",
              "lessThan": "eae19cab44204537f79146f15a51811b13227c38"
            },
            {
              "version": "ac584af599452748187cf6d7865b1607c54ee443",
              "status": "affected",
              "versionType": "git",
              "lessThan": "de3f923ae7d91480ed3ecea1b1e1fc0dc25b597d"
            },
            {
              "version": "ac584af599452748187cf6d7865b1607c54ee443",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3fb43a7a5b44713f892c58ead2e5f3a1bc9f4ee7"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.19",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.19"
            },
            {
              "version": "5.10.253",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.203",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.168",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.134",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.81",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.22",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.12",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}