CVE-2026-121402

Medium

Description

FreeRDP before 3.32.2 contains a NULL pointer dereference vulnerability that allows malicious RDP servers to crash xfreerdp clients by sending a zero-width RDPGFX ResetGraphics PDU. The failed resize in gdi_resize_ex leaves the primary display null without ending the session, so a later bitmap update crashes the client in gdi_Bitmap_Paint.

SeverityMedium

CVSS6.5

Exploit probability—

ProductFreerdp

PublishedNov 3, 2026

First seenNov 4, 2026

Weakness typeCWE-476NULL pointer dereference

How to fix

Update

freerdp freerdp3.32.2 or later

Vendor advisories

github.com/FreeRDP/FreeRDP/security/advisories/GHSA-c426-ppvf-jpfg

Affected products

Product	Affected versions	Fixed in
freerdp freerdp	v < 3.32.2	3.32.2

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