All vulnerabilities
CVE-2026-109946GHSA-97pf-pwp3-2wrv

FreeRDP 3.11.0 before 3.32.0 Reachable Assertion via AVC444 Odd Region Width

FreeRDP FreeRDP
Open in ThreatlineRecord JSON
CVSS
7.1High
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 18 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.29%Chance of exploitation activity in the next 30 days, higher than 19% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in3.32.0Fixed versionCVE List
Published13 Oct 2026Updated 18 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

FreeRDP 3.11.0 before 3.32.0 does not validate that AVC444 and AVC444v2 region widths are even before YUV444 conversion, so an odd width reaches an assertion and aborts the client. A malicious or compromised RDP server can terminate a connected FreeRDP client after RDPGFX AVC444 negotiation by sending an in-bounds region rectangle with an odd width.

Text from CVE List

Affected versions 2

  • FreeRDPaffected: 3.11.0 before 3.32.0CVE List
  • FreeRDPunaffected: 3.32.0CVE List

References 2