UBUNTU-CVE-2026-121401

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    UBUNTU-CVE-2026-121401

    Published: 3 Nov 2026Last Modified: 5 Nov 2026
    Upstream:
    CVE-2026-121401

    Summary:

    Details: FreeRDP before 3.32.2 contains a denial of service vulnerability where rdg_process_packet dispatches a PKT_TYPE_EXTENDED_AUTH_MSG without verifying negotiated mode or auth context. A malicious or compromised RD Gateway can send the extended-auth packet before tunnel authentication, triggering a null-pointer dereference that crashes the client.

    References: https://ubuntu.com/security/CVE-2026-121401, https://www.cve.org/CVERecord?id=CVE-2026-121401, https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8rjm-m7xg-mg6m, https://www.vulncheck.com/advisories/freerdp-before-3.32.2-denial-of-service-via-rd-gateway-extended-auth-packet

    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-2026-121401 | CVE-DB