UBUNTU-CVE-2026-121402

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    UBUNTU-CVE-2026-121402

    Published: 3 Nov 2026Last Modified: 5 Nov 2026
    Upstream:
    CVE-2026-121402

    Summary:

    Details: FreeRDP before 3.32.2 contains a NULL pointer dereference vulnerability that allows malicious RDP servers to crash xfreerdp clients by sending a zero-width RDPGFX ResetGraphics PDU. The failed resize in gdi_resize_ex leaves the primary display null without ending the session, so a later bitmap update crashes the client in gdi_Bitmap_Paint.

    References: https://ubuntu.com/security/CVE-2026-121402, https://www.cve.org/CVERecord?id=CVE-2026-121402, https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-c426-ppvf-jpfg, https://www.vulncheck.com/advisories/freerdp-before-3.32.2-x11-client-crash-via-zero-width-rdpgfx-resetgraphics

    Affected packages

    Package

    Name: freerdp

    Purl: pkg:deb/ubuntu/freerdp?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1
    1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.2
    1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.3
    1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4

    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-2026-121402 | CVE-DB