CVE-2026-22851

EUVD-2026-2677
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a race condition between the RDPGFX dynamic virtual channel thread and the SDL render thread leads to a heap use-after-free. Specifically, an escaped pointer to sdl->primary (SDL_Surface) is accessed after it has been freed during RDPGFX ResetGraphics handling. This vulnerability is fixed in 3.20.1.
Race Condition
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.9 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 27%
Affected Products (NVD)
VendorProductVersion
freerdpfreerdp
𝑥
< 3.20.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
freerdp2
bookworm
no-dsa
bullseye
vulnerable
bullseye (security)
vulnerable
freerdp3
forky
3.26.0+dfsg-1
fixed
sid
3.26.0+dfsg-1
fixed
trixie
3.15.0+dfsg-2.1+deb13u3
fixed
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
freerdp
suse enterprise desktop 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise sap 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise server 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise workstation 15 SP7
3.10.3-150700.3.3.1
fixed
freerdp-devel
suse enterprise desktop 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise sap 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise server 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise workstation 15 SP7
3.10.3-150700.3.3.1
fixed
freerdp-proxy
suse enterprise desktop 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise sap 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise server 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise workstation 15 SP7
3.10.3-150700.3.3.1
fixed
freerdp-proxy-plugins
suse enterprise desktop 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise sap 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise server 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise workstation 15 SP7
3.10.3-150700.3.3.1
fixed
freerdp-sdl
suse enterprise desktop 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise sap 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise server 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise workstation 15 SP7
3.10.3-150700.3.3.1
fixed
freerdp-server
suse enterprise desktop 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise sap 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise server 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise workstation 15 SP7
3.10.3-150700.3.3.1
fixed
libfreerdp-server-proxy3-3
suse enterprise desktop 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise sap 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise server 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise workstation 15 SP7
3.10.3-150700.3.3.1
fixed
libfreerdp3-3
suse enterprise desktop 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise sap 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise server 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise workstation 15 SP7
3.10.3-150700.3.3.1
fixed
librdtk0-0
suse enterprise desktop 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise sap 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise server 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise workstation 15 SP7
3.10.3-150700.3.3.1
fixed
libwinpr3-3
suse enterprise desktop 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise sap 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise server 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise workstation 15 SP7
3.10.3-150700.3.3.1
fixed
winpr-devel
suse enterprise desktop 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise sap 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise server 15 SP7
3.10.3-150700.3.3.1
fixed
suse enterprise workstation 15 SP7
3.10.3-150700.3.3.1
fixed
Common Weakness Enumeration
References
https://github.com/FreeRDP/FreeRDP/releases/tag/3.20.1
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8g87-6pvc-wh99