CVE-2026-121957

High

Description

FreeRDP before 3.32.2 contains a use-after-free vulnerability that allows malicious RDP servers to corrupt client memory by racing the RDPGFX ResetGraphics handler against the planar bitmap decoder. Attackers can send ResetGraphics while concurrently sending compressed bitmaps of 32 bpp or more to trigger heap use-after-free or out-of-bounds read/write on shared planar buffers.

SeverityHigh

CVSS7.5

Exploit probability—

ProductFreeRDP

PublishedNov 4, 2026

First seenNov 4, 2026

Weakness typeCWE-362Race condition

How to fix

Update

FreeRDP3.32.2 or later
freerdp freerdp3.32.2 or later

Vendor advisories

github.com/FreeRDP/FreeRDP/security/advisories/GHSA-xjhw-2r55-m95g

Affected products

Product	Affected versions	Fixed in
FreeRDP	No range specified	3.32.2
freerdp freerdp	v < 3.32.2	3.32.2

Check your version

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In the Intelligence 360 plan

Attack Surface Management

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