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    CVE-2025-66494

    A use-after-free vulnerability exists in the PDF file parsing of Foxit PDF Reader before 2025.2.1, 14.0.1, and 13.2.1 on Windows. A PDF object managed by multiple parent objects could be freed while still being referenced, potentially allowing a remote attacker to execute arbitrary code.

    Published:Dec 19, 2025
    Last Modified:Dec 23, 2025
    EPS:Dec 19, 2025
    EPSS Score:0.00044
    CVSS Score:7.8

    Affected Products

    Vendor
    Foxit
    Product
    Pdf Editor
    Vendor
    Foxit
    Product
    Pdf Reader
    Vendor
    Microsoft
    Product
    Windows

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-5938 (CVSS 5.5) — Improper control flow management allows a crafted document action chain to cause modal dialog reentry on the m…
    CVE-2026-5940 (CVSS 7.8) — Calling a function that triggers a UI refresh after removing comments via a script may access an invalidated o…
    CVE-2026-5942 (CVSS 5.5) — Flaws in page lifecycle management allow document structure changes to desynchronize internal component states…
    CVE-2026-5943 (CVSS 7.8) — Document structural anomalies caused inconsistencies between page element relationships and internal index sta…
    CVE-2026-5939 (CVSS 5.5) — A crafted XFA PDF can trigger a use-after-free condition during calculate event processing, causing the applic…
    CVE-2026-5941 (CVSS 7.8) — Parsing logic flaws cause non-signature data to be misidentified as valid signatures when processing malformed…
    CVE-2026-3774 (CVSS 4.7) — The application allows PDF JavaScript and document/print actions (such as WillPrint/DidPrint) to update form f…
    CVE-2026-3775 (CVSS 7.8) — The application's update service, when checking for updates, loads certain system libraries from a search path…

    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