Use-after-free in FreeRDP - CVE-2026-27950

Vulnerability identifier: #VU125342

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-27950

CWE-ID: CWE-416

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to use-after-free in update_pointer_new(SDL) when handling crafted pointer updates in the SDL2 implementation. A remote attacker can trigger the vulnerable pointer handling flow to cause a denial of service.

Only environments using the SDL2 code path are affected.

FreeRDP
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Package Hub 15
Ubuntu
freerdp3 (Ubuntu package)
libwinpr3-3
freerdp-sdl
librdtk0-0-debuginfo
freerdp-proxy-plugins-debuginfo
libwinpr3-3-debuginfo
winpr-devel
libfreerdp-server-proxy3-3-debuginfo
libfreerdp-server-proxy3-3
freerdp-proxy-plugins
freerdp-sdl-debuginfo
librdtk0-0
libfreerdp3-3-debuginfo
libfreerdp3-3
freerdp-server
freerdp
freerdp-devel
libuwac0-0-debuginfo
freerdp-debugsource
libuwac0-0
freerdp-server-debuginfo
freerdp-debuginfo
freerdp-wayland
freerdp-proxy-debuginfo
freerdp-proxy
freerdp-wayland-debuginfo

Install security update from vendor's website.

FreeRDP - update to 3.23.0
freerdp3 (Ubuntu package) - addressed in versions 3.5.1+dfsg1-0ubuntu1.4, 3.16.0+dfsg-2ubuntu0.3
libwinpr3-3 - update to 3.10.3-150700.3.14.1
freerdp-sdl - update to 3.10.3-150700.3.14.1
librdtk0-0-debuginfo - update to 3.10.3-150700.3.14.1
freerdp-proxy-plugins-debuginfo - update to 3.10.3-150700.3.14.1
libwinpr3-3-debuginfo - update to 3.10.3-150700.3.14.1
winpr-devel - update to 3.10.3-150700.3.14.1
libfreerdp-server-proxy3-3-debuginfo - update to 3.10.3-150700.3.14.1
libfreerdp-server-proxy3-3 - update to 3.10.3-150700.3.14.1
freerdp-proxy-plugins - update to 3.10.3-150700.3.14.1
freerdp-sdl-debuginfo - update to 3.10.3-150700.3.14.1
librdtk0-0 - update to 3.10.3-150700.3.14.1
libfreerdp3-3-debuginfo - update to 3.10.3-150700.3.14.1
libfreerdp3-3 - update to 3.10.3-150700.3.14.1
freerdp-server - update to 3.10.3-150700.3.14.1
freerdp - update to 3.10.3-150700.3.14.1
freerdp-devel - update to 3.10.3-150700.3.14.1
libuwac0-0-debuginfo - update to 3.10.3-150700.3.14.1
freerdp-debugsource - update to 3.10.3-150700.3.14.1
libuwac0-0 - update to 3.10.3-150700.3.14.1
freerdp-server-debuginfo - update to 3.10.3-150700.3.14.1
freerdp-debuginfo - update to 3.10.3-150700.3.14.1
freerdp-wayland - update to 3.10.3-150700.3.14.1
freerdp-proxy-debuginfo - update to 3.10.3-150700.3.14.1
freerdp-proxy - update to 3.10.3-150700.3.14.1
freerdp-wayland-debuginfo - update to 3.10.3-150700.3.14.1

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-rvfg-86cr-5r6p

• Multiple vulnerabilities in FreeRDP
• Ubuntu update for freerdp3
• SUSE update for freerdp