This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-109251 →
UBUNTU-CVE-2026-109251
FreeRDP before 3.32.0 stores the server-supplied signed MS-RDPEGT geometry origin unchecked in an unsigned video surface coordinate, so the blit clamp...
Original description
The description as published by the source.
FreeRDP before 3.32.0 stores the server-supplied signed MS-RDPEGT geometry origin unchecked in an unsigned video surface coordinate, so the blit clamp in gdiVideoShowSurface() wraps in 32-bit arithmetic and is skipped. A malicious RDP server can send a negative topLevelLeft to clients connecting with /video, causing an out-of-bounds write of decoded H.264 picture data or a client abort.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Ubuntu:16.04:LTS
freerdp
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:18.04:LTS
freerdp2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS
freerdp
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:20.04:LTS
freerdp2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
freerdp2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
freerdp3
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.32.0+dfsg-0ubuntu0.24.04.1"}]}]
Ubuntu:Pro:24.04:LTS
freerdp2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
freerdp3
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.32.0+dfsg-0ubuntu0.26.04.1"}]}]
References
- report ubuntu.com
- report cve.org
- report github.com
- report vulncheck.com