{
  "cveId": "CVE-2021-39853",
  "url": "https://patchblox.com/security/cve/CVE-2021-39853",
  "summary": "CVE-2021-39853 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 Null Pointer Dereference Could Lead To Application Denial-of-Service",
  "description": "Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
  "published": "2021-09-29T16:15:10Z",
  "severity": "",
  "cvss": 5.5,
  "cwe": "CWE-476: NULL Pointer Dereference (CWE-476)",
  "epss": 0.02192,
  "epssPercentile": 0.8257,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://nvd.nist.gov/vuln/detail/CVE-2021-39853",
  "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": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}