CVE-2026-85090

Medium

Description

FreeRDP before 3.31.0 contains a heap out-of-bounds read vulnerability in the general_ChromaV1ToYUV444 function during AVC444 chroma plane reconstruction. A malicious RDP server can craft a RFX_AVC444_BITMAP_STREAM with specific frame geometry to trigger an out-of-bounds memory read past the allocated luma plane.

SeverityMedium

CVSS5.4

Exploit probability—

ProductFreerdp

PublishedSep 3, 2026

First seenSep 3, 2026

Weakness typeCWE-125Out-of-bounds read

How to fix

Update

freerdp freerdp3.31.0 or later

Patches

github.com/FreeRDP/FreeRDP/commit/d0a481cb74ab57bca24791fe11b89464a332d3f1

Vendor advisories

github.com/FreeRDP/FreeRDP/security/advisories/GHSA-57h7-vw2f-2f9x
github.com/FreeRDP/FreeRDP/releases/tag/3.31.0

Affected products

Product	Affected versions	Fixed in
freerdp freerdp	v < 3.31.0	3.31.0

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.