CVE-2026-109952 | BDVDB-2026-388677 Detail

Description#

The FreeRDP client 3.0.0 before 3.32.0 does not check a server-selected PROTOCOL_RDSTLS or PROTOCOL_HYBRID_EX against its enabled protocol set in nego_process_negotiation_response(), allowing a security protocol downgrade. A malicious server or man-in-the-middle can select RDSTLS to override /sec:nla pinning, complete authentication with an all-zero cookie, and receive the user's cleartext password in the Client Info PDU.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12026-10-13Record published in the CVE List.
2. Version 22026-10-16Most recent update recorded in the CVE List.