CVE-2026-121410

Medium

Description

FreeRDP before 3.32.2 contains a denial of service vulnerability in the RDPGFX ALPHA WIRETOSURFACE_2 handler that fails to validate zero surface dimensions. A malicious RDP server can send a crafted WIRETOSURFACE_2 PDU with zero width and height, triggering an assertion or division by zero that terminates the client session.

SeverityMedium

CVSS4.3

Exploit probability—

ProductFreerdp

PublishedNov 3, 2026

First seenNov 4, 2026

Weakness typeCWE-369CWE-369

How to fix

Update

freerdp freerdp3.32.2 or later

Vendor advisories

github.com/FreeRDP/FreeRDP/security/advisories/GHSA-fqw6-jf2h-6fj6

Affected products

Product	Affected versions	Fixed in
freerdp freerdp	v < 3.32.2	3.32.2

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