UBUNTU-CVE-2025-11679

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    UBUNTU-CVE-2025-11679

    Published: 20 Oct 2025Last Modified: 12 Feb 2026
    Upstream:
    CVE-2025-11679

    Summary:

    Details: Out-of-bounds Read in lws_upng_emit_next_line in warmcat libwebsockets allows, when the LWS_WITH_UPNG flag is enabled during compilation and the HTML display stack is used, to read past a heap allocated buffer possibly causing a crash, when the user visits an attacker controlled website that contains a crafted PNG file with a big height dimension.

    References: https://ubuntu.com/security/CVE-2025-11679, https://www.cve.org/CVERecord?id=CVE-2025-11679, https://libwebsockets.org/git/libwebsockets/commit?id=7df24cca7144d7bc9233b6b0a71108bd154ce101, https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2025-11679

    Affected packages

    Package

    Name: libwebsockets

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.2.2-1

    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
    UBUNTU-CVE-2025-11679 | CVE-DB