Heap-based buffer overflow in FreeRDP - CVE-2026-24682

Vulnerability identifier: #VU122492

CSH Severity: High

CVSS v4: 7.5 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-24682

CWE-ID: CWE-122

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in audio_formats_free() function. A remote attacker can trick the victim into connecting to a malicious server, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

FreeRDP
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Workstation Extension 15
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
SUSE Package Hub 15
openSUSE Leap
Ubuntu
openEuler
freerdp2 (Ubuntu package)
uwac0-0-devel
freerdp-debugsource
freerdp-wayland
freerdp-server-debuginfo
freerdp-debuginfo
freerdp-server
freerdp-wayland-debuginfo
libwinpr2
libwinpr2-debuginfo
winpr2-devel
freerdp-devel
libfreerdp2-debuginfo
libfreerdp2
freerdp
libuwac0-0-debuginfo
freerdp-proxy
freerdp-proxy-debuginfo
libuwac0-0
libwinpr2-2-debuginfo
libfreerdp2-2-debuginfo
winpr-devel
libwinpr2-2
libfreerdp2-2
freerdp2-proxy-debuginfo
freerdp2-server
freerdp2-devel
freerdp2
freerdp2-proxy
freerdp2-debugsource
freerdp2-debuginfo
freerdp2-server-debuginfo
libwinpr-devel
libwinpr
freerdp-help
freerdp (Red Hat package)

Install updates from vendor's website.

FreeRDP - update to 3.22.0
freerdp2 (Ubuntu package) - addressed in versions 2.2.0+dfsg1-0ubuntu0.18.04.4+esm5, 2.6.1+dfsg1-0ubuntu0.20.04.2+esm3, 2.6.1+dfsg1-3ubuntu2.10, 2.11.5+dfsg1-1ubuntu0.1~esm5, 3.5.1+dfsg1-0ubuntu1.2, 3.16.0+dfsg-2ubuntu0.1
uwac0-0-devel - addressed in versions 2.4.0-150400.3.38.1, 2.11.2-150600.4.9.1
freerdp-debugsource - addressed in versions 2.4.0-150400.3.38.1, 2.11.2-150600.4.9.1
freerdp-wayland - addressed in versions 2.4.0-150400.3.38.1, 2.11.2-150600.4.9.1
freerdp-server-debuginfo - addressed in versions 2.4.0-150400.3.38.1, 2.11.2-150600.4.9.1
freerdp-debuginfo - addressed in versions 2.4.0-150400.3.38.1, 2.11.2-150600.4.9.1
freerdp-server - addressed in versions 2.4.0-150400.3.38.1, 2.11.2-150600.4.9.1
freerdp-wayland-debuginfo - addressed in versions 2.4.0-150400.3.38.1, 2.11.2-150600.4.9.1
libwinpr2 - update to 2.4.0-150400.3.38.1
libwinpr2-debuginfo - update to 2.4.0-150400.3.38.1
winpr2-devel - addressed in versions 2.4.0-150400.3.38.1, 2.11.7-150700.3.8.1
freerdp-devel - addressed in versions 2.4.0-150400.3.38.1, 2.11.2-150600.4.9.1
libfreerdp2-debuginfo - update to 2.4.0-150400.3.38.1
libfreerdp2 - update to 2.4.0-150400.3.38.1
freerdp - addressed in versions 2.4.0-150400.3.38.1, 2.11.2-150600.4.9.1
libuwac0-0-debuginfo - addressed in versions 2.4.0-150400.3.38.1, 2.11.2-150600.4.9.1
freerdp-proxy - addressed in versions 2.4.0-150400.3.38.1, 2.11.2-150600.4.9.1
freerdp-proxy-debuginfo - addressed in versions 2.4.0-150400.3.38.1, 2.11.2-150600.4.9.1
libuwac0-0 - addressed in versions 2.4.0-150400.3.38.1, 2.11.2-150600.4.9.1
libwinpr2-2-debuginfo - addressed in versions 2.11.2-150600.4.9.1, 2.11.7-150700.3.8.1
libfreerdp2-2-debuginfo - addressed in versions 2.11.2-150600.4.9.1, 2.11.7-150700.3.8.1
winpr-devel - update to 2.11.2-150600.4.9.1
libwinpr2-2 - addressed in versions 2.11.2-150600.4.9.1, 2.11.7-150700.3.8.1
libfreerdp2-2 - addressed in versions 2.11.2-150600.4.9.1, 2.11.7-150700.3.8.1
freerdp2-proxy-debuginfo - update to 2.11.7-150700.3.8.1
freerdp2-server - update to 2.11.7-150700.3.8.1
freerdp2-devel - update to 2.11.7-150700.3.8.1
freerdp2 - update to 2.11.7-150700.3.8.1
freerdp2-proxy - update to 2.11.7-150700.3.8.1
freerdp2-debugsource - update to 2.11.7-150700.3.8.1
freerdp2-debuginfo - update to 2.11.7-150700.3.8.1
freerdp2-server-debuginfo - update to 2.11.7-150700.3.8.1
freerdp-debugsource - update to 2.11.8-1
freerdp - update to 2.11.8-1
freerdp-debuginfo - update to 2.11.8-1
libwinpr-devel - update to 2.11.8-1
libwinpr - update to 2.11.8-1
freerdp-help - update to 2.11.8-1
freerdp-devel - update to 2.11.8-1
freerdp (Red Hat package) - addressed in versions 3.10.3-3.el10_0.5, 3.10.3-5.el10_1.5

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-vcw2-pqgw-mx6g
• https://github.com/FreeRDP/FreeRDP/commit/1c5c74223179d425a1ce6dbbb6a3dd2a958b7aee

• Multiple vulnerabilities in FreeRDP
• Ubuntu update for freerdp2
• SUSE update for freerdp
• SUSE update for freerdp
• SUSE update for freerdp2
• openEuler 24.03 LTS update for freerdp
• openEuler 22.03 LTS SP4 update for freerdp
• openEuler 20.03 LTS SP4 update for freerdp
• openEuler 24.03 LTS SP3 update for freerdp
• openEuler 24.03 LTS SP2 update for freerdp
• openEuler 24.03 LTS SP1 update for freerdp
• Red Hat Enterprise Linux 10 update for freerdp
• Red Hat Enterprise Linux 10 update for freerdp