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Name
CVE-2026-23532
Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, a client-side heap buffer overflow occurs in the FreeRDP client’s `gdi_SurfaceToSurface` path due to a mismatch between destination rectangle clamping and the actual copy size. A malicious server can trigger a client‑side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code‑execution risk depending on allocator behavior and surrounding heap layout. Version 3.21.0 contains a patch for the issue.
CWEs
Published Date
Updated Date
Workaround
-
Analysis#
Vulnerability Ratings#
7.7
CVSSv4
9.8
CVSSv31
NaN
other
Others affected components#
Resolved with patches#
freerdp (buildroot:2025.02.x)
#
Title
Author
Resolve
1
[gdi,gfx] properly clamp SurfaceToSurface
akallabeth <akallabeth@posteo.net>
CVE-2026-23532
freerdp (buildroot:master)
#
Title
Author
Resolve
1
[gdi,gfx] properly clamp SurfaceToSurface
akallabeth <akallabeth@posteo.net>
CVE-2026-23532
freerdp (yocto:master)
#
Title
Author
Resolve
1
properly clamp SurfaceToSurface
Gyorgy Sarvari <skandigraun@gmail.com>
CVE-2026-23532