Heap-based buffer overflow in FreeRDP - CVE-2026-22854

Vulnerability identifier: #VU122505

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-2026-22854

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 drive_process_irp_read() 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 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Red Hat CodeReady Linux Builder for x86_64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for IBM z Systems
Anolis OS
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for ARM 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 x86_64 - Extended Update Support
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
SUSE Package Hub 15
openSUSE Leap
openEuler
Ubuntu
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
freerdp (Red Hat package)
winpr2-devel
freerdp-devel
freerdp-server-debuginfo
freerdp
freerdp-proxy
freerdp-wayland-debuginfo
freerdp-debuginfo
libwinpr2-debuginfo
libfreerdp2-debuginfo
libfreerdp2
freerdp-debugsource
libwinpr2
freerdp-proxy-debuginfo
freerdp-server
freerdp-wayland
libuwac0-0
uwac0-0-devel
libuwac0-0-debuginfo
libwinpr2-2-debuginfo
libfreerdp2-2-debuginfo
libwinpr2-2
winpr-devel
libfreerdp2-2
libwinpr-devel
libwinpr
freerdp-help
freerdp-doc
freerdp-libs
freerdp2-debugsource
freerdp2
freerdp2-server
freerdp2-proxy-debuginfo
freerdp2-server-debuginfo
freerdp2-devel
freerdp2-proxy
freerdp2-debuginfo
freerdp3 (Ubuntu package)

Install updates from vendor's website.

FreeRDP - update to 3.20.1
freerdp (Red Hat package) - addressed in versions 2.0.0-46.rc4.el8_2.10, 2.1.1-5.el7_9.7, 2.2.0-7.el8_6.5, 2.2.0-12.el8_4, 2.2.0-12.el8_8.5, 2.4.1-3.el9_0.4, 2.4.1-6.el9_2.6, 2.11.2-1.el9_4.5, 2.11.7-1.el9_6.7, 2.11.7-1.el9_7.5, 2.11.7-6.el8_10, 3.10.3-3.el10_0.5, 3.10.3-5.el10_1.5
winpr2-devel - addressed in versions 2.1.2-12.52.1, 2.4.0-150400.3.35.1, 2.11.7-150700.3.3.1
freerdp-devel - addressed in versions 2.1.2-12.52.1, 2.4.0-150400.3.35.1, 2.11.2-150600.4.6.1
freerdp-server-debuginfo - addressed in versions 2.4.0-150400.3.35.1, 2.11.2-150600.4.6.1
freerdp - addressed in versions 2.4.0-150400.3.35.1, 2.11.2-150600.4.6.1
freerdp-proxy - addressed in versions 2.4.0-150400.3.35.1, 2.11.2-150600.4.6.1
freerdp-wayland-debuginfo - addressed in versions 2.4.0-150400.3.35.1, 2.11.2-150600.4.6.1
freerdp-debuginfo - addressed in versions 2.4.0-150400.3.35.1, 2.11.2-150600.4.6.1
libwinpr2-debuginfo - update to 2.4.0-150400.3.35.1
libfreerdp2-debuginfo - update to 2.4.0-150400.3.35.1
libfreerdp2 - update to 2.4.0-150400.3.35.1
freerdp-debugsource - addressed in versions 2.4.0-150400.3.35.1, 2.11.2-150600.4.6.1
libwinpr2 - update to 2.4.0-150400.3.35.1
freerdp-proxy-debuginfo - addressed in versions 2.4.0-150400.3.35.1, 2.11.2-150600.4.6.1
freerdp-server - addressed in versions 2.4.0-150400.3.35.1, 2.11.2-150600.4.6.1
freerdp-wayland - addressed in versions 2.4.0-150400.3.35.1, 2.11.2-150600.4.6.1
libuwac0-0 - addressed in versions 2.4.0-150400.3.35.1, 2.11.2-150600.4.6.1
uwac0-0-devel - addressed in versions 2.4.0-150400.3.35.1, 2.11.2-150600.4.6.1
libuwac0-0-debuginfo - addressed in versions 2.4.0-150400.3.35.1, 2.11.2-150600.4.6.1
libwinpr2-2-debuginfo - addressed in versions 2.11.2-150600.4.6.1, 2.11.7-150700.3.3.1
libfreerdp2-2-debuginfo - addressed in versions 2.11.2-150600.4.6.1, 2.11.7-150700.3.3.1
libwinpr2-2 - addressed in versions 2.11.2-150600.4.6.1, 2.11.7-150700.3.3.1
winpr-devel - update to 2.11.2-150600.4.6.1
libfreerdp2-2 - addressed in versions 2.11.2-150600.4.6.1, 2.11.7-150700.3.3.1
freerdp - addressed in versions 2.11.7-4, 2.11.8-1
libwinpr-devel - addressed in versions 2.11.7-4, 2.11.8-1
libwinpr - addressed in versions 2.11.7-4, 2.11.8-1
freerdp-help - addressed in versions 2.11.7-4, 2.11.8-1
freerdp-devel - addressed in versions 2.11.7-4, 2.11.8-1
freerdp-debugsource - addressed in versions 2.11.7-4, 2.11.8-1
freerdp-debuginfo - addressed in versions 2.11.7-4, 2.11.8-1
freerdp-doc - update to 2.11.7-6.0.1
libwinpr-devel - update to 2.11.7-6.0.1
libwinpr - update to 2.11.7-6.0.1
freerdp-libs - update to 2.11.7-6.0.1
freerdp-devel - update to 2.11.7-6.0.1
freerdp - update to 2.11.7-6.0.1
freerdp2-debugsource - update to 2.11.7-150700.3.3.1
freerdp2 - update to 2.11.7-150700.3.3.1
freerdp2-server - update to 2.11.7-150700.3.3.1
freerdp2-proxy-debuginfo - update to 2.11.7-150700.3.3.1
freerdp2-server-debuginfo - update to 2.11.7-150700.3.3.1
freerdp2-devel - update to 2.11.7-150700.3.3.1
freerdp2-proxy - update to 2.11.7-150700.3.3.1
freerdp2-debuginfo - update to 2.11.7-150700.3.3.1
freerdp3 (Ubuntu package) - addressed in versions 3.5.1+dfsg1-0ubuntu1.4, 3.16.0+dfsg-2ubuntu0.3

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-47vj-g3c3-3rmf

• Multiple vulnerabilities in FreeRDP
• SUSE update for freerdp
• SUSE update for freerdp
• SUSE update for freerdp2
• openEuler 24.03 LTS SP1 update for freerdp
• openEuler 24.03 LTS update for freerdp
• openEuler 24.03 LTS SP3 update for freerdp
• openEuler 24.03 LTS SP2 update for freerdp
• SUSE update for freerdp
• openEuler 22.03 LTS SP4 update for freerdp
• openEuler 20.03 LTS SP4 update for freerdp
• Red Hat Enterprise Linux 9 update for freerdp
• Red Hat Enterprise Linux 9 update for freerdp
• Red Hat Enterprise Linux 10 update for freerdp
• Red Hat Enterprise Linux 10 update for freerdp
• Red Hat Enterprise Linux 8 update for freerdp
• Red Hat Enterprise Linux 9 update for freerdp
• Ubuntu update for freerdp3
• Anolis OS update for freerdp
• Red Hat Enterprise Linux 9 update for freerdp
• Red Hat Enterprise Linux 9 update for freerdp
• Red Hat Enterprise Linux 8 update for freerdp
• Red Hat Enterprise Linux 8 update for freerdp
• Red Hat Enterprise Linux 8 update for freerdp
• Red Hat Enterprise Linux 8 update for freerdp
• Red Hat Enterprise Linux 7 Extended Lifecycle Support update for freerdp