{
  "cveId": "CVE-2026-81977",
  "url": "https://patchblox.com/security/cve/CVE-2026-81977",
  "summary": "CVE-2026-81977 is fixed in 2 products on 2 platforms, first by Adobe Acrobat Reader DC 26.002.21901, released September 7, 2026. 1 other affected product has no fix yet. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "Acrobat Reader | Integer Underflow (Wrap or Wraparound) (CWE-191)",
  "description": "Acrobat Reader is affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to disclose sensitive information. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
  "published": "2026-09-08T21:18:44Z",
  "severity": "",
  "cvss": 5.5,
  "cwe": "CWE-191: Integer Underflow (Wrap or Wraparound) (CWE-191)",
  "epss": 0.00261,
  "epssPercentile": 0.17891,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://nvd.nist.gov/vuln/detail/CVE-2026-81977",
  "fixes": [
    {
      "platform": "windows-app",
      "product": "Adobe Acrobat Reader DC",
      "fixedVersion": "26.002.21901",
      "fix": "Adobe Acrobat Reader DC 26.002.21901",
      "url": "https://patchblox.com/security/fix/windows-app/adobe.acrobat.reader.32-bit-26.002.21901",
      "released": "2026-09-07T00:00:00Z"
    },
    {
      "platform": "windows-app",
      "product": "Adobe Acrobat Reader DC (64-bit)",
      "fixedVersion": "26.002.21901",
      "fix": "Adobe Acrobat Reader DC (64-bit) 26.002.21901",
      "url": "https://patchblox.com/security/fix/windows-app/adobe.acrobat.reader.64-bit-26.002.21901",
      "released": "2026-09-07T00:00:00Z"
    }
  ],
  "noFixYet": [
    {
      "platform": "macOS",
      "product": "Adobe Acrobat Reader",
      "status": "no-fix",
      "affectedVersion": "26.001.21662"
    }
  ],
  "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"
  }
}