CVE-2026-25941

FreeRDP: vuln_1_15_1 RDPGFX WIRE_TO_SURFACE_2 Out-of-Bounds Read

State: Published
Severity: 4.3 Medium
Published: Feb 25, 2026
Updated: Feb 26, 2026
Reserved: Feb 9, 2026

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Versions on the 2.x branch prior to to 2.11.8 and on the 3.x branch prior to 3.23.0 have an out-of-bounds read vulnerability in the FreeRDP client's RDPGFX channel that allows a malicious RDP server to read uninitialized heap memory by sending a crafted WIRE_TO_SURFACE_2 PDU with a `bitmapDataLength` value larger than the actual data in the packet. This can lead to information disclosure or client crashes when a user connects to a malicious server. Versions 2.11.8 and 3.23.0 fix the issue.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N	GitHub_M

Weaknesses

CWE-20 Improper Input Validation
CWE-125 Out-of-bounds Read

Affected Products

Product	Versions
FreeRDPFreeRDP	>= 2.0.0, < 2.11.8Affected >= 3.0.0, < 3.23.0Affected

References

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