{
  "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-2021-47620",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-47620",
    "idYear": 2021,
    "status": "PUBLISHED",
    "publishedAt": "2024-06-20T11:08:09.320Z",
    "updatedAt": "2026-08-05T08:48:40.593Z",
    "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": "Bluetooth: refactor malicious adv data check",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: refactor malicious adv data check\n\nCheck for out-of-bound read was being performed at the end of while\nnum_reports loop, and would fill journal with false positives. Added\ncheck to beginning of loop processing so that it doesn't get checked\nafter ptr has been advanced.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "048acfa4daf167b007b6bd8bef474e90c2282a5f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "305e92f525450f3e1b5f5c9dc7eadb152d66a082"
            },
            {
              "version": "7d4238edd3bf8b8c75571cc3b382bc10438ac588",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7889b38a7f21ed19314f83194622b195d328465c"
            },
            {
              "version": "185c77cbb53bc7481acc5a0b4e6119bbe393d561",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5a539c08d743d9910631448da78af5e961664c0e"
            },
            {
              "version": "4a1491432394b22e585a185ffca49086e4046aae",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8819f93cd4a443dfe547aa622b21f723757df3fb"
            },
            {
              "version": "24161b9c43de966789d5956428f45002d10f878e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "835d3706852537bf92eb23eb8635b8dee0c0aa67"
            },
            {
              "version": "ffc9019bd991707701273c2e5d8aed472229fc4d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "83d5196b65d1b29e27d7dd16a3b9b439fb1d2dba"
            },
            {
              "version": "2de0e6a71ceb056e17e4684dce8b7640367996f9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bcea886771c3f22a590c8c8b9139a107bd7f1e1c"
            },
            {
              "version": "640a476e38fce6c70c738ac09e5167e34f570303",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5c968affa804ba98c3c603f37ffea6fba618025e"
            },
            {
              "version": "3a56ef719f0b9682afb8a86d64b2399e36faa4e6",
              "status": "affected",
              "versionType": "git",
              "lessThan": "899663be5e75dc0174dc8bda0b5e6826edf0b29a"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4.4.300",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.4.302"
            },
            {
              "version": "4.9.298",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.9.300"
            },
            {
              "version": "4.14.263",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.14.265"
            },
            {
              "version": "4.19.226",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.19.228"
            },
            {
              "version": "5.4.174",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.4.176"
            },
            {
              "version": "5.10.94",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.96"
            },
            {
              "version": "5.15.17",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.19"
            },
            {
              "version": "5.16.3",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.16.5"
            }
          ]
        }
      ]
    }
  }
}