Medium severity4.3NVD Advisory· Published Nov 3, 2026· Updated Nov 3, 2026
CVE-2026-121401
CVE-2026-121401
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.
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Affected products
1Patches
Vulnerability mechanics
References
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