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    CVE-2025-6196

    A flaw was found in libgepub, a library used to read EPUB files. The software mishandles file size calculations when opening specially crafted EPUB files, leading to incorrect memory allocations. This issue causes the application to crash. Known affected usage includes desktop services like Tumbler, which may process malicious files automatically when browsing directories. While no direct remote attack vectors are confirmed, any application using libgepub to parse user-supplied EPUB content could be vulnerable to a denial of service.

    Published:Jun 17, 2025
    Last Modified:Nov 6, 2025
    EPS:Jun 17, 2025
    EPSS Score:0.00051
    CVSS Score:5.5

    Affected Products

    Vendor
    Gnome
    Product
    Libgepub
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    https://gitlab.gnome.org/GNOME/libgepub/-/issues/18

    Common Weakness Enumeration

    CWE-190 Integer Overflow or Wraparound

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    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