{
  "cveId": "CVE-2021-39857",
  "url": "https://patchblox.com/security/cve/CVE-2021-39857",
  "summary": "CVE-2021-39857 is fixed in Adobe Acrobat Reader DC on 1 platform by Adobe Acrobat Reader DC 21.007.20091 (version 21.007.20091), released September 9, 2021. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "Adobe Acrobat Reader DC Information Disclosure via ActiveX LoadFile",
  "description": "Adobe Acrobat Reader DC add-on for Internet Explorer versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by an Information Disclosure vulnerability. An unauthenticated attacker could leverage this vulnerability to check for existence of local files. Exploitation of this issue requires user interaction in that a victim must visit an attacker controlled web page.",
  "published": "2021-09-29T16:15:10Z",
  "severity": "",
  "cvss": 4.3,
  "cwe": "CWE-200: Information Exposure (CWE-200)",
  "epss": 0.02517,
  "epssPercentile": 0.84935,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://nvd.nist.gov/vuln/detail/CVE-2021-39857",
  "fixes": [
    {
      "platform": "windows-app",
      "product": "Adobe Acrobat Reader DC",
      "fixedVersion": "21.007.20091",
      "fix": "Adobe Acrobat Reader DC 21.007.20091",
      "url": "https://patchblox.com/security/fix/windows-app/adobe.acrobat.reader.32-bit-21.007.20091",
      "released": "2021-09-09T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}