{
  "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-2021-47404",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-47404",
    "idYear": 2021,
    "status": "PUBLISHED",
    "publishedAt": "2024-05-21T15:03:58.021Z",
    "updatedAt": "2026-05-11T13:54:02.901Z",
    "importedAt": "2026-10-24T01:56:36.661Z",
    "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": "HID: betop: fix slab-out-of-bounds Write in betop_probe",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: betop: fix slab-out-of-bounds Write in betop_probe\n\nSyzbot reported slab-out-of-bounds Write bug in hid-betopff driver.\nThe problem is the driver assumes the device must have an input report but\nsome malicious devices violate this assumption.\n\nSo this patch checks hid_device's input is non empty before it's been used.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a4faa7153b87fbcfe4be15f4278676f79ca6e019"
            },
            {
              "version": "52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6fc4476dda58f6c00097c7ddec3b772513f57525"
            },
            {
              "version": "52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1c83c38dec83d57bc18d0c01d82c413d3b34ccb9"
            },
            {
              "version": "52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bb8b72374db69afa25a5b65cf1c092860c6fe914"
            },
            {
              "version": "52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fe9bb925e7096509711660d39c0493a1546e9550"
            },
            {
              "version": "52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "dedfc35a2de2bae9fa3da8210a05bfd515f83fee"
            },
            {
              "version": "52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "708107b80aa616976d1c5fa60ac0c1390749db5e"
            },
            {
              "version": "52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1e4ce418b1cb1a810256b5fb3fd33d22d1325993"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.0",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.0"
            },
            {
              "version": "4.4.286",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.4.*"
            },
            {
              "version": "4.9.285",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.9.*"
            },
            {
              "version": "4.14.249",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.209",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.151",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.71",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.14.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.14.*"
            },
            {
              "version": "5.15",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}