CVE-2026-121401 — Vulnerability intelligence
freerdp — freerdp
Published:
- CVSS
- 5.3
- CISA KEV
- Not listed; not proof of no exploitation
Original source text (not a translation)
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.