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    CVE-2026-91789

    Foxit PDF Editor/Reader’s U3D/GIF texture decoding path contained insufficient validation of image dimensions and related size information. Under certain conditions, this could lead to an incorrectly sized memory allocation and a subsequent out-of-bounds write during pixel processing, potentially resulting in remote code execution.

    Published:Sep 23, 2026
    Last Modified:Oct 8, 2026
    EPS:Sep 23, 2026
    EPSS Score:0.00162
    CVSS Score:7.8

    Affected Products

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

    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

    CVE-2026-91788 (CVSS 4.7) — When implementing the JavaScript interface, Foxit PDF Editor/Reader did not perform the attribute authorizatio…
    CVE-2026-91790 (CVSS 7.8) — When rendering the page image, Foxit PDF Editor/Reader fails to perform validation on image objects whose opti…
    CVE-2026-91791 (CVSS 7.8) — When processing a specially crafted PDF file, Foxit PDF Editor/Reader may encounter a reentrant execution cond…
    CVE-2026-91792 (CVSS 7.8) — When processing a specially crafted PDF, Foxit PDF Editor/Reader may perform reentrant zoom and layout operati…
    CVE-2026-91793 (CVSS 7.8) — When opening a specially crafted PDF, Foxit PDF Editor/Reader executes scripts that modify annotation rich-tex…
    CVE-2026-91794 (CVSS 7.8) — An out-of-bounds write vulnerability exists in the PDF rendering process of Foxit PDF Editor/Reader due to ins…
    CVE-2026-91795 (CVSS 7.8) — Foxit PDF Editor/Reader's FileOpen plugin did not adequately validate certain encryption metadata in specially…
    CVE-2026-91796 (CVSS 6.1) — The interface of Foxit PDF Editor/Reader lacks the permission verification for secure reading mode, which allo…
    CVE-2026-91797 (CVSS 7.8) — Foxit PDF Editor/Reader failed to validate the directory traversal path in the attachment file name, resulting…
    CVE-2026-91799 (CVSS 7.8) — A use-after-free vulnerability exists in Foxit PDF Editor/Reader’s handling of JavaScript array objects. A spe…

    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