{
  "fix": "Adobe Acrobat Reader DC 21.001.20155",
  "url": "https://patchblox.com/security/fix/windows-app/adobe.acrobat.reader.32-bit-21.001.20155",
  "summary": "Adobe Acrobat Reader DC 21.001.20155, released April 27, 2021, fixes 56 CVEs in Adobe Acrobat Reader DC. 2 of them are being exploited (CVE-2021-21017); 2 on CISA KEV. Patch Radar priority: Patch now. 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 21.001.20155",
  "released": "2021-04-27T00:00:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2021-21017, exploited (CISA KEV)",
  "supported": true,
  "cveCount": 56,
  "exploitedCveCount": 2,
  "kevCveCount": 2,
  "ransomwareCveCount": 0,
  "maxEpss": 0.86274,
  "maxCvss": 8.8,
  "appliesTo": [
    {
      "product": "Adobe Acrobat Reader DC",
      "productUrl": "https://patchblox.com/security/product/windows-app/adobe-acrobat-reader-dc",
      "fixedVersion": "21.001.20155",
      "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-2021-21017",
      "url": "https://patchblox.com/security/cve/CVE-2021-21017",
      "title": "Adobe Acrobat and Reader Heap-based Buffer Overflow Vulnerability",
      "priority": "Patch now",
      "cvss": 8.8,
      "epss": 0.86274,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-28550",
      "url": "https://patchblox.com/security/cve/CVE-2021-28550",
      "title": "Adobe Acrobat and Reader Use-After-Free Vulnerability",
      "priority": "Patch now",
      "cvss": 8.8,
      "epss": 0.52132,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-28560",
      "url": "https://patchblox.com/security/cve/CVE-2021-28560",
      "title": "Adobe Acrobat Reader heap corruption vulnerability could lead to arbitrary code execution",
      "priority": "High",
      "cvss": 8.8,
      "epss": 0.66918,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-24435",
      "url": "https://patchblox.com/security/cve/CVE-2020-24435",
      "title": "Acrobat Reader DC Heap-based Buffer Overflow Could Lead to Arbitrary Code Execution",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.52718,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-24437",
      "url": "https://patchblox.com/security/cve/CVE-2020-24437",
      "title": "Acrobat Reader DC Use-After-Free Vulnerability Could Lead to Arbitrary Code Execution",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.46549,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-24430",
      "url": "https://patchblox.com/security/cve/CVE-2020-24430",
      "title": "Acrobat Pro DC Use-After-Free vulnerability Could Lead to Arbitrary Code Execution",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.18665,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-24436",
      "url": "https://patchblox.com/security/cve/CVE-2020-24436",
      "title": "Acrobat Pro DC PDF Export Out-Of-Bounds Write Vulnerability Could Lead to Arbitrary Code Execution",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.1702,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-24433",
      "url": "https://patchblox.com/security/cve/CVE-2020-24433",
      "title": "Adobe Acrobat Reader DC Local Privilege Escalation via Installer Component",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.1587,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-24432",
      "url": "https://patchblox.com/security/cve/CVE-2020-24432",
      "title": "Acrobat Reader DC Arbitrary JavaScript Execution in PDF Documents",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.11097,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-28558",
      "url": "https://patchblox.com/security/cve/CVE-2021-28558",
      "title": "Adobe Acrobat Reader heap-based buffer overflow could lead to arbitrary code execution",
      "priority": "High",
      "cvss": 8.8,
      "epss": 0.10362,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-28562",
      "url": "https://patchblox.com/security/cve/CVE-2021-28562",
      "title": "Adobe Acrobat Reader use-after-free could lead to arbitrary code execution",
      "priority": "High",
      "cvss": 8.8,
      "epss": 0.05117,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21086",
      "url": "https://patchblox.com/security/cve/CVE-2021-21086",
      "title": "Adobe Reader CoolType Arbitrary Stack Manipulation",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.04714,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21021",
      "url": "https://patchblox.com/security/cve/CVE-2021-21021",
      "title": "Acrobat Reader DC Use-After-Free Vulnerability Could Lead To Arbitrary Code Execution",
      "priority": "High",
      "cvss": 8.8,
      "epss": 0.04295,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21028",
      "url": "https://patchblox.com/security/cve/CVE-2021-21028",
      "title": "Acrobat Reader DC Use-After-Free Vulnerability Could Lead To Arbitrary Code Execution",
      "priority": "High",
      "cvss": 8.8,
      "epss": 0.04295,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21033",
      "url": "https://patchblox.com/security/cve/CVE-2021-21033",
      "title": "Acrobat Reader DC Use-After-Free Vulnerability Could Lead To Arbitrary Code Execution",
      "priority": "High",
      "cvss": 8.8,
      "epss": 0.04295,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21035",
      "url": "https://patchblox.com/security/cve/CVE-2021-21035",
      "title": "Acrobat Reader DC Use-After-Free Vulnerability Could Lead To Arbitrary Code Execution",
      "priority": "High",
      "cvss": 8.8,
      "epss": 0.04295,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-28565",
      "url": "https://patchblox.com/security/cve/CVE-2021-28565",
      "title": "Adobe Acrobat Reader out-of-bounds read could lead to information exposure",
      "priority": "High",
      "cvss": 8.8,
      "epss": 0.03936,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21044",
      "url": "https://patchblox.com/security/cve/CVE-2021-21044",
      "title": "Acrobat Reader DC Out-Of-Bounds Write Vulnerability Could Lead To Arbitrary Code Execution",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.0369,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-28553",
      "url": "https://patchblox.com/security/cve/CVE-2021-28553",
      "title": "Adobe Acrobat Reader use-after-free vulnerability could lead to arbitrary code execution",
      "priority": "High",
      "cvss": 8.8,
      "epss": 0.03539,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-28564",
      "url": "https://patchblox.com/security/cve/CVE-2021-28564",
      "title": "Adobe Acrobat Reader out-of-bounds write vulnerability could lead to arbitrary code execution",
      "priority": "High",
      "cvss": 8.8,
      "epss": 0.03529,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21037",
      "url": "https://patchblox.com/security/cve/CVE-2021-21037",
      "title": "Acrobat Reader DC Path Traversal Vulnerability Could Lead To Arbitrary Code Execution",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.03493,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21038",
      "url": "https://patchblox.com/security/cve/CVE-2021-21038",
      "title": "Acrobat Reader DC Out-Of-Bounds Write Vulnerability Could Lead To Arbitrary Code Execution",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.03419,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-28551",
      "url": "https://patchblox.com/security/cve/CVE-2021-28551",
      "title": "Adobe Acrobat Pro DC JPEG2000 Editing Out-Of-Bounds Read Remote Code Execution Vulnerability",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.0339,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-28561",
      "url": "https://patchblox.com/security/cve/CVE-2021-28561",
      "title": "Adobe Acrobat Reader memory corruption vulnerability could lead to remote code execution",
      "priority": "High",
      "cvss": 8.8,
      "epss": 0.03265,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21039",
      "url": "https://patchblox.com/security/cve/CVE-2021-21039",
      "title": "Acrobat Reader DC Use-After-Free Vulnerability Could Lead To Arbitrary Code Execution",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.03193,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21040",
      "url": "https://patchblox.com/security/cve/CVE-2021-21040",
      "title": "Acrobat Reader DC Use-After-Free Vulnerability Could Lead To Arbitrary Code Execution",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.03193,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21041",
      "url": "https://patchblox.com/security/cve/CVE-2021-21041",
      "title": "Acrobat Reader DC Use-After-Free Vulnerability Could Lead To Arbitrary Code Execution",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.03193,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-24429",
      "url": "https://patchblox.com/security/cve/CVE-2020-24429",
      "title": "Acrobat Reader DC for macOS Signature Verification Bypass Could Lead to Privilege Escalation",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.03046,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21036",
      "url": "https://patchblox.com/security/cve/CVE-2021-21036",
      "title": "Acrobat Reader DC Integer Overflow Vulnerability Could Lead To Arbitrary Code Execution",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.02912,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21058",
      "url": "https://patchblox.com/security/cve/CVE-2021-21058",
      "title": "Acrobat Reader DC Memory Corruption Vulnerability Could Lead to Arbitrary Code Execution",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.0273,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21059",
      "url": "https://patchblox.com/security/cve/CVE-2021-21059",
      "title": "Acrobat Reader DC Buffer Overflow Vulnerability Could Lead to Arbitrary Code Execution",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.0273,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21062",
      "url": "https://patchblox.com/security/cve/CVE-2021-21062",
      "title": "Acrobat Reader DC Buffer Overflow Vulnerability Could Lead To Arbitrary Code Execution",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.0273,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21063",
      "url": "https://patchblox.com/security/cve/CVE-2021-21063",
      "title": "Acrobat Reader DC Buffer Overflow Vulnerability Could Lead to Arbitrary Code Execution",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.0273,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-28545",
      "url": "https://patchblox.com/security/cve/CVE-2021-28545",
      "title": "Acrobat Reader DC Missing Support for Integrity Check",
      "priority": "High",
      "cvss": 8.1,
      "epss": 0.02514,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-24428",
      "url": "https://patchblox.com/security/cve/CVE-2020-24428",
      "title": "Acrobat Reader DC for macOS Race Condition Vulnerability Could Lead to Privilege Escalation",
      "priority": "High",
      "cvss": 7.7,
      "epss": 0.02262,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21045",
      "url": "https://patchblox.com/security/cve/CVE-2021-21045",
      "title": "Acrobat Reader DC Improper Installer Access Control Vulnerability Could Lead To Privilege Escalation",
      "priority": "High",
      "cvss": 8.2,
      "epss": 0.01782,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21088",
      "url": "https://patchblox.com/security/cve/CVE-2021-21088",
      "title": "Adobe Acrobat Pro DC Use-After-Free Remote Code Execution Vulnerability",
      "priority": "High",
      "cvss": 7.8,
      "epss": 0.00381,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21042",
      "url": "https://patchblox.com/security/cve/CVE-2021-21042",
      "title": "Acrobat Reader DC Out-Of-Bounds Read Information Disclosure Vulnerability",
      "priority": "Routine",
      "cvss": 6.5,
      "epss": 0.14705,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-29075",
      "url": "https://patchblox.com/security/cve/CVE-2020-29075",
      "title": "PDF Injection BlackHat Talk",
      "priority": "Routine",
      "cvss": 6.5,
      "epss": 0.07917,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-24438",
      "url": "https://patchblox.com/security/cve/CVE-2020-24438",
      "title": "Acrobat Reader DC Use-After-Free Vulnerability Could Lead to Information Disclosure",
      "priority": "Routine",
      "cvss": 3.3,
      "epss": 0.03892,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-24426",
      "url": "https://patchblox.com/security/cve/CVE-2020-24426",
      "title": "Acrobat Reader DC Out-Of-Bounds Read Information Disclosure Vulnerability",
      "priority": "Routine",
      "cvss": 3.3,
      "epss": 0.0306,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-24434",
      "url": "https://patchblox.com/security/cve/CVE-2020-24434",
      "title": "Acrobat Pro DC Out-Of-Bounds Read Vulnerability Could Lead to Information Disclosure",
      "priority": "Routine",
      "cvss": 3.3,
      "epss": 0.0306,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-28555",
      "url": "https://patchblox.com/security/cve/CVE-2021-28555",
      "title": "Adobe Acrobat Reader out-of-bounds Read could lead to information disclosure",
      "priority": "Routine",
      "cvss": 6.5,
      "epss": 0.02836,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21034",
      "url": "https://patchblox.com/security/cve/CVE-2021-21034",
      "title": "Acrobat Reader DC Out-Of-Bounds Read Information Disclosure Vulnerability",
      "priority": "Routine",
      "cvss": 4.3,
      "epss": 0.02594,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-24427",
      "url": "https://patchblox.com/security/cve/CVE-2020-24427",
      "title": "Acrobat Reader DC Codec Input Validation Vulnerability Could Lead to Information Disclosure",
      "priority": "Routine",
      "cvss": 3.3,
      "epss": 0.02447,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21061",
      "url": "https://patchblox.com/security/cve/CVE-2021-21061",
      "title": "Acrobat Pro DC Use-After-Free Vulnerability Could Lead to Information Disclosure",
      "priority": "Routine",
      "cvss": 3.3,
      "epss": 0.02103,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21089",
      "url": "https://patchblox.com/security/cve/CVE-2021-21089",
      "title": "Adobe Acrobat Reader DC URI Parsing Out-Of-Bounds Read",
      "priority": "Routine",
      "cvss": 3.3,
      "epss": 0.01868,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-28557",
      "url": "https://patchblox.com/security/cve/CVE-2021-28557",
      "title": "Adobe Acrobat Reader out-of-bounds read in PDFLibTool could lead to information exposure",
      "priority": "Routine",
      "cvss": 4.3,
      "epss": 0.01801,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21046",
      "url": "https://patchblox.com/security/cve/CVE-2021-21046",
      "title": "Acrobat Reader DC Buffer Overflow Vulnerability Could Lead To Arbitrary Code Execution",
      "priority": "Routine",
      "cvss": 3.3,
      "epss": 0.0174,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-28559",
      "url": "https://patchblox.com/security/cve/CVE-2021-28559",
      "title": "Adobe Acrobat Reader privacy violation vulnerability could lead to privilege escalation",
      "priority": "Routine",
      "cvss": 5.3,
      "epss": 0.01646,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21060",
      "url": "https://patchblox.com/security/cve/CVE-2021-21060",
      "title": "Acrobat Pro DC Improper File Parsing Could Lead to Information Disclosure",
      "priority": "Routine",
      "cvss": 4.6,
      "epss": 0.0164,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-24431",
      "url": "https://patchblox.com/security/cve/CVE-2020-24431",
      "title": "Acrobat Reader DC for macOS Dynamic Library Injection Vulnerability",
      "priority": "Routine",
      "cvss": 4.4,
      "epss": 0.01609,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-28546",
      "url": "https://patchblox.com/security/cve/CVE-2021-28546",
      "title": "Acrobat Reader DC Missing Support for Integrity Check",
      "priority": "Routine",
      "cvss": 6.5,
      "epss": 0.01471,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21057",
      "url": "https://patchblox.com/security/cve/CVE-2021-21057",
      "title": "Acrobat Reader DC Invalid Memory Read Due To An Uninitialized Pointer",
      "priority": "Routine",
      "cvss": 6.6,
      "epss": 0.01146,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-24439",
      "url": "https://patchblox.com/security/cve/CVE-2020-24439",
      "title": "Acrobat Reader DC for macOS Signature Validation Bypass",
      "priority": "Routine",
      "cvss": 2.8,
      "epss": 0.00638,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-40723",
      "url": "https://patchblox.com/security/cve/CVE-2021-40723",
      "title": "Acrobat Reader DC Out-Of-Bounds Read Information Disclosure Vulnerability",
      "priority": "Routine",
      "cvss": 5.5,
      "epss": 0.00313,
      "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"
  }
}