{
  "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-2024-20506",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-20506",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-09-04T21:28:54.812Z",
    "updatedAt": "2025-11-03T21:52:31.990Z",
    "importedAt": "2026-10-24T01:57:07.518Z",
    "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": "ClamAV Privilege Handling Escalation Vulnerability",
      "summary": "A vulnerability in the ClamD service module of Clam AntiVirus (ClamAV) versions 1.4.0, 1.3.2 and prior versions, all 1.2.x versions, 1.0.6 and prior versions, all 0.105.x versions, all 0.104.x versions, and 0.103.11 and all prior versions could allow an authenticated, local attacker to corrupt critical system files.\r\n\r\nThe vulnerability is due to allowing the ClamD process to write to its log file while privileged without checking if the logfile has been replaced with a symbolic link. An attacker could exploit this vulnerability if they replace the ClamD log file with a symlink to a critical system file and then find a way to restart the ClamD process. An exploit could allow the attacker to corrupt a critical system file by appending ClamD log messages after restart.",
      "affected": [
        {
          "vendor": "Cisco",
          "product": "ClamAV",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "1.4.0",
              "status": "affected"
            },
            {
              "version": "1.3.2",
              "status": "affected"
            },
            {
              "version": "1.0.6",
              "status": "affected"
            },
            {
              "version": "1.0.5",
              "status": "affected"
            },
            {
              "version": "1.0.4",
              "status": "affected"
            },
            {
              "version": "1.0.3",
              "status": "affected"
            },
            {
              "version": "1.0.2",
              "status": "affected"
            },
            {
              "version": "1.0.1",
              "status": "affected"
            },
            {
              "version": "1.0.0",
              "status": "affected"
            },
            {
              "version": "1.2.x",
              "status": "affected"
            },
            {
              "version": "0.105.x",
              "status": "affected"
            },
            {
              "version": "0.104.x",
              "status": "affected"
            },
            {
              "version": "0.103.11",
              "status": "affected"
            },
            {
              "version": "0.103.10",
              "status": "affected"
            },
            {
              "version": "0.103.9",
              "status": "affected"
            },
            {
              "version": "0.103.8",
              "status": "affected"
            },
            {
              "version": "0.103.7",
              "status": "affected"
            },
            {
              "version": "0.103.6",
              "status": "affected"
            },
            {
              "version": "0.103.5",
              "status": "affected"
            },
            {
              "version": "0.103.4",
              "status": "affected"
            },
            {
              "version": "0.103.3",
              "status": "affected"
            },
            {
              "version": "0.103.2",
              "status": "affected"
            },
            {
              "version": "0.103.1",
              "status": "affected"
            },
            {
              "version": "0.103.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}