CVE-2026-121389

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    CVE-2026-121389

    Published: 3 Nov 2026Last Modified: 5 Nov 2026

    Summary: FreeRDP 3.27.0 before 3.32.2 Client DoS via RDPDR Device Announcement Logging

    Details: FreeRDP from 3.27.0 before 3.32.2 contains a denial of service vulnerability in rdpdr_dump_packet that allows malicious RDP servers to abort clients by sending malformed RDPDR device-list announcements. Attackers can declare a DeviceDataLength exceeding the received packet, triggering a fatal Stream_Seek assertion when device redirection, TRACE logging, and WinPR assertions are enabled.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/121xxx/CVE-2026-121389.json, https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-66mr-7wc7-23vc, https://nvd.nist.gov/vuln/detail/CVE-2026-121389, https://www.vulncheck.com/advisories/freerdp-3.27.0-before-3.32.2-client-dos-via-rdpdr-device-announcement-logging

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 4f72b0979892352ff501e84d99832dc3bdc86a53
    Fixed -97eff6ddfbbfaa8e42a126d362686bd001ff8bdc

    Affected versions

    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
    CVE-2026-121389 | CVE-DB