{
  "fix": "Adobe Acrobat Reader DC 21.007.20091",
  "url": "https://patchblox.com/security/fix/windows-app/adobe.acrobat.reader.32-bit-21.007.20091",
  "summary": "Adobe Acrobat Reader DC 21.007.20091, released September 9, 2021, fixes 28 CVEs in Adobe Acrobat Reader DC. None of them is reported as exploited. Patch Radar priority: High. The latest Adobe Acrobat Reader DC is 26.002.22031, which also fixes every one of these CVEs.",
  "platform": "windows-app",
  "type": "app-version",
  "title": "Adobe Acrobat Reader DC 21.007.20091",
  "released": "2021-09-09T00:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2021-39843, high severity",
  "supported": true,
  "cveCount": 28,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.76678,
  "maxCvss": 7.8,
  "appliesTo": [
    {
      "product": "Adobe Acrobat Reader DC",
      "productUrl": "https://patchblox.com/security/product/windows-app/adobe-acrobat-reader-dc",
      "fixedVersion": "21.007.20091",
      "latestVersion": "26.002.22031",
      "supported": true
    }
  ],
  "supersededBy": {
    "product": "Adobe Acrobat Reader DC",
    "latestVersion": "26.002.22031",
    "productUrl": "https://patchblox.com/security/product/windows-app/adobe-acrobat-reader-dc"
  },
  "cves": [
    {
      "cveId": "CVE-2021-39843",
      "url": "https://patchblox.com/security/cve/CVE-2021-39843",
      "title": "Adobe Acrobat Reader XObject Out-of-Bound Write Vulnerability",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.76678,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39836",
      "url": "https://patchblox.com/security/cve/CVE-2021-39836",
      "title": "Adobe Acrobat Reader DC AcroForm buttonGetIcon Use-After-Free Remote Code Execution Vulnerability",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.69538,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39837",
      "url": "https://patchblox.com/security/cve/CVE-2021-39837",
      "title": "Adobe Acrobat Reader DC AcroForm deleteItemAt Use-After-Free Remote Code Execution Vulnerability",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.65249,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39838",
      "url": "https://patchblox.com/security/cve/CVE-2021-39838",
      "title": "Adobe Acrobat Reader DC AcroForm buttonGetCaption Use-After-Free Remote Code Execution Vulnerability",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.65249,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39839",
      "url": "https://patchblox.com/security/cve/CVE-2021-39839",
      "title": "Adobe Acrobat Reader DC AcroForm getItemAt Use-After-Free Remote Code Execution Vulnerability",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.65249,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39840",
      "url": "https://patchblox.com/security/cve/CVE-2021-39840",
      "title": "Adobe Acrobat Reader DC AcroForm Field Use-After-Free Remote Code Execution Vulnerability",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.60798,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39842",
      "url": "https://patchblox.com/security/cve/CVE-2021-39842",
      "title": "Adobe Acrobat Reader DC messageHandler.OnMessage Use-After-Free Vulnerability",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.17352,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39863",
      "url": "https://patchblox.com/security/cve/CVE-2021-39863",
      "title": "Adobe Acrobat Reader DC Heap-based Buffer Overflow Vulnerability Could Lead To Arbitrary Code Execution",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.13191,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39841",
      "url": "https://patchblox.com/security/cve/CVE-2021-39841",
      "title": "Adobe Acrobat Pro DC DocMedia Type Confusion Remote Code Execution Vulnerability",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.11701,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-40725",
      "url": "https://patchblox.com/security/cve/CVE-2021-40725",
      "title": "Adobe Acrobat Reader DC AcroForm listbox Use-After-Free Remote Code Execution Vulnerability",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.05285,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-40726",
      "url": "https://patchblox.com/security/cve/CVE-2021-40726",
      "title": "Adobe Acrobat Reader DC AcroForm Field Use-After-Free Remote Code Execution Vulnerability",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.05285,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-35982",
      "url": "https://patchblox.com/security/cve/CVE-2021-35982",
      "title": "Adobe Reader DC Windows Installer Uncontrolled Search Path element could lead to Arbitrary Code Execution",
      "priority": "High",
      "cvss": 7.3,
      "epss": 0.01773,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39844",
      "url": "https://patchblox.com/security/cve/CVE-2021-39844",
      "title": "Adobe Acrobat Reader CalRGB Out-of-Bounds Read Vulnerability",
      "priority": "Routine",
      "cvss": 3.3,
      "epss": 0.03086,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39845",
      "url": "https://patchblox.com/security/cve/CVE-2021-39845",
      "title": "Adobe Acrobat Reader Page Tree Node Recursive Stack Overflow",
      "priority": "Routine",
      "cvss": 6.1,
      "epss": 0.02591,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39846",
      "url": "https://patchblox.com/security/cve/CVE-2021-39846",
      "title": "Adobe Acrobat Reader /Parent Property Recursive Stack Overflow",
      "priority": "Routine",
      "cvss": 6.1,
      "epss": 0.02591,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39861",
      "url": "https://patchblox.com/security/cve/CVE-2021-39861",
      "title": "Adobe Acrobat Reader DC Catalog Plugin Out-of-Bounds Read Bug",
      "priority": "Routine",
      "cvss": 5.5,
      "epss": 0.02537,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39857",
      "url": "https://patchblox.com/security/cve/CVE-2021-39857",
      "title": "Adobe Acrobat Reader DC Information Disclosure via ActiveX LoadFile",
      "priority": "Routine",
      "cvss": 4.3,
      "epss": 0.02517,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39858",
      "url": "https://patchblox.com/security/cve/CVE-2021-39858",
      "title": "Adobe Acrobat Pro DC PostScript File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability",
      "priority": "Routine",
      "cvss": 3.3,
      "epss": 0.02459,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39860",
      "url": "https://patchblox.com/security/cve/CVE-2021-39860",
      "title": "Adobe Acrobat Reader DC Search Plugin Null Pointer Dereference",
      "priority": "Routine",
      "cvss": 5.5,
      "epss": 0.02417,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39854",
      "url": "https://patchblox.com/security/cve/CVE-2021-39854",
      "title": "Adobe Acrobat Reader DC Null Pointer Dereference Could Lead To Application Denial-of-Service",
      "priority": "Routine",
      "cvss": 5.5,
      "epss": 0.02405,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39855",
      "url": "https://patchblox.com/security/cve/CVE-2021-39855",
      "title": "Adobe Acrobat Reader DC NTLMv2 SSO Information Disclosure via src Parameter",
      "priority": "Routine",
      "cvss": 6.5,
      "epss": 0.02363,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39856",
      "url": "https://patchblox.com/security/cve/CVE-2021-39856",
      "title": "Adobe Acrobat Reader DC NTLMv2 SSO Information Disclosure via LoadFile",
      "priority": "Routine",
      "cvss": 6.5,
      "epss": 0.02363,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39853",
      "url": "https://patchblox.com/security/cve/CVE-2021-39853",
      "title": "Adobe Acrobat Reader DC Null Pointer Dereference Could Lead To Application Denial-of-Service",
      "priority": "Routine",
      "cvss": 5.5,
      "epss": 0.02192,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39849",
      "url": "https://patchblox.com/security/cve/CVE-2021-39849",
      "title": "Adobe Acrobat Reader DC Null Pointer Dereference Could Lead To Application Denial-of-Service",
      "priority": "Routine",
      "cvss": 5.5,
      "epss": 0.01943,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39850",
      "url": "https://patchblox.com/security/cve/CVE-2021-39850",
      "title": "Adobe Acrobat Reader DC Null Pointer Dereference Could Lead To Application Denial-of-Service",
      "priority": "Routine",
      "cvss": 5.5,
      "epss": 0.01943,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39851",
      "url": "https://patchblox.com/security/cve/CVE-2021-39851",
      "title": "Adobe Acrobat Reader DC Null Pointer Dereference Could Lead To Application Denial-of-Service",
      "priority": "Routine",
      "cvss": 5.5,
      "epss": 0.01943,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39852",
      "url": "https://patchblox.com/security/cve/CVE-2021-39852",
      "title": "Adobe Acrobat Reader DC Null Pointer Dereference Could Lead To Application Denial-of-Service",
      "priority": "Routine",
      "cvss": 5.5,
      "epss": 0.01943,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-39859",
      "url": "https://patchblox.com/security/cve/CVE-2021-39859",
      "title": "Use After Free Adobe Acrobat Pro DC [HB-21-0339]",
      "priority": "Routine",
      "cvss": 5.5,
      "epss": 0.00485,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-11T13:47:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}