CVE-2026-25941

A flaw was found in the FreeRDP client. A malicious Remote Desktop Protocol (RDP) server can exploit an out-of-bounds read vulnerability in the RDPGFX channel. By sending a specially crafted WIRE_TO_SURFACE_2 Protocol Data Unit (PDU) with a bitmapDataLength value exceeding the actual data, an attacker can read uninitialized heap memory. This can lead to sensitive information disclosure or cause the client to crash.

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.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.