CVE-2026-121401

MediumCVSS 4.3/10Last modified Nov 3, 2026

Description

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.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Weakness enumeration

CWE-476

Affected software

No affected versions have been published.

Timeline

Published
Nov 3, 2026
Last modified
Nov 3, 2026
NVD status
Modified

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CVE-2026-121401: Medium severity, CVSS 4.3 | Vulnix