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    CVE-2021-28642

    Acrobat Reader DC versions 2021.005.20054 (and earlier), 2020.004.30005 (and earlier) and 2017.011.30197 (and earlier) are affected by an Out-of-bounds write vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

    Published:Aug 20, 2021
    Last Modified:Nov 21, 2024
    EPS:Aug 20, 2021
    EPSS Score:0.37328
    CVSS Score:8.8

    Affected Products

    Vendor
    Adobe
    Product
    Acrobat Dc
    Vendor
    Adobe
    Product
    Acrobat Reader Dc

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-81991 (CVSS 5.5) — Acrobat Reader is affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive m…
    CVE-2026-81980 (CVSS 7.8) — Acrobat Reader is affected by an out-of-bounds write vulnerability that could result in arbitrary code executi…
    CVE-2026-81990 (CVSS 7.8) — Acrobat Reader is affected by a Use After Free vulnerability that could result in arbitrary code execution in …
    CVE-2026-81987 (CVSS 7.8) — Acrobat Reader is affected by an Integer Overflow or Wraparound vulnerability that could result in arbitrary c…
    CVE-2026-79910 (CVSS 5.5) — Acrobat Reader is affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive m…
    CVE-2026-81993 (CVSS 5.5) — Acrobat Reader is affected by a Heap-based Buffer Overflow vulnerability that could lead to disclosure of sens…
    CVE-2026-79907 (CVSS 7.8) — Acrobat Reader is affected by a Double Free vulnerability that could result in arbitrary code execution in the…
    CVE-2026-79909 (CVSS 7.8) — Acrobat Reader is affected by a Use After Free vulnerability that could result in arbitrary code execution in …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High