CVE-2026-91959

A flaw was found in FreeRDP. A remote attacker can exploit a buffer over-read vulnerability within the RPC (Remote Procedure Call) gateway transport parser by sending a malicious BIND_ACK Protocol Data Unit (PDU) with a truncated result entry. This can lead to a process abort, resulting in a Denial of Service (DoS).

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

To mitigate this issue, restrict network access to any FreeRDP instance operating in a server or gateway role, limiting connections to trusted clients or networks. If FreeRDP is used as a client, avoid connecting to untrusted or malicious RDP servers to prevent exploitation.