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    CVE-2026-3780

    The application's installer runs with elevated privileges but resolves system executables and DLLs using untrusted search paths that can include user-writable directories, allowing a local attacker to place malicious binaries with the same names and have them loaded or executed instead of the legitimate system files, resulting in local privilege escalation.

    Published:Apr 1, 2026
    Last Modified:Apr 28, 2026
    EPS:Apr 1, 2026
    EPSS Score:0.00013
    CVSS Score:7.3

    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-426 Untrusted Search Path

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-38 Leveraging/Manipulating Configuration File Search Paths

    Related CVEs

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    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