CVE-2026-109242

High

Description

FreeRDP before 3.0.0 and 3.6.0 before 3.32.0 renders uninitialized heap memory from un-decoded progressive tiles because the tile->current buffer is allocated without zeroing. A malicious RDP server can send a crafted WBT_TILE_FIRST then WBT_TILE_UPGRADE sequence to paint heap bytes onscreen or abort the client process.

SeverityHigh

CVSS7.1

Exploit probability—

ProductFreerdp

PublishedOct 12, 2026

First seenOct 12, 2026

Weakness typeCWE-908CWE-908

How to fix

Update

freerdp freerdp3.0.0, 3.32.0 or later

Vendor advisories

github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4mpr-hmqx-83q8

Affected products

Product	Affected versions	Fixed in
freerdp freerdp	v < 3.0.0, 3.6.0 ≤ v < 3.32.0	3.0.0, 3.32.0

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