Out-of-bounds read in FreeRDP - CVE-2026-31885

Vulnerability identifier: #VU125360

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-31885

CWE-ID: CWE-125

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to out-of-bounds read in the MS-ADPCM and IMA-ADPCM decoders in dsp.c when processing crafted ADPCM audio data over the RDPSND channel. A remote attacker can send specially crafted audio data to disclose sensitive information.

User interaction is required.

FreeRDP
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 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 IBM z Systems
Red Hat Enterprise Linux for x86_64
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
Anolis OS
Red Hat CodeReady Linux Builder for IBM z Systems
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 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
SUSE Package Hub 15
openSUSE Leap
openEuler
Fedora
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
freerdp (Red Hat package)
freerdp-devel
winpr2-devel
freerdp-proxy
libwinpr2-debuginfo
uwac0-0-devel
freerdp-wayland-debuginfo
libwinpr2
libfreerdp2-debuginfo
freerdp-server-debuginfo
freerdp-debuginfo
freerdp-proxy-debuginfo
freerdp-server
libuwac0-0
freerdp-wayland
libfreerdp2
libuwac0-0-debuginfo
freerdp
freerdp-debugsource
libfreerdp2-2-debuginfo
libfreerdp2-2
winpr-devel
libwinpr2-2-debuginfo
libwinpr2-2
libwinpr-devel
libwinpr
freerdp-libs
freerdp-doc
freerdp2-server
freerdp2-debuginfo
freerdp2-debugsource
freerdp2-devel
freerdp2-server-debuginfo
freerdp2
freerdp2-proxy-debuginfo
freerdp2-proxy
freerdp-help
libfreerdp-server-proxy3-3
libfreerdp3-3
libwinpr3-3-debuginfo
freerdp-proxy-plugins-debuginfo
freerdp-proxy-plugins
librdtk0-0
freerdp-sdl-debuginfo
libfreerdp3-3-debuginfo
librdtk0-0-debuginfo
libwinpr3-3
libfreerdp-server-proxy3-3-debuginfo
freerdp-sdl

Install security update from vendor's website.

FreeRDP - update to 3.24.0
freerdp (Red Hat package) - addressed in versions 2.1.1-5.el7_9.9, 2.2.0-7.el8_6.8, 2.2.0-12.el8_8.8, 2.2.0-14.el8_4, 2.4.1-3.el9_0.7, 2.11.2-1.el9_4.8, 2.11.7-1.el9_6.10, 2.11.7-9.el8_10, 3.10.3-5.el10_1.8
freerdp-devel - addressed in versions 2.1.2-12.63.1, 2.4.0-150400.3.47.1, 2.11.2-150600.4.18.1, 3.10.3-150700.3.9.1
winpr2-devel - addressed in versions 2.1.2-12.63.1, 2.4.0-150400.3.47.1, 2.11.7-150700.3.14.1
freerdp-proxy - addressed in versions 2.4.0-150400.3.47.1, 2.11.2-150600.4.18.1, 3.10.3-150700.3.9.1
libwinpr2-debuginfo - update to 2.4.0-150400.3.47.1
uwac0-0-devel - addressed in versions 2.4.0-150400.3.47.1, 2.11.2-150600.4.18.1
freerdp-wayland-debuginfo - addressed in versions 2.4.0-150400.3.47.1, 2.11.2-150600.4.18.1, 3.10.3-150700.3.9.1
libwinpr2 - update to 2.4.0-150400.3.47.1
libfreerdp2-debuginfo - update to 2.4.0-150400.3.47.1
freerdp-server-debuginfo - addressed in versions 2.4.0-150400.3.47.1, 2.11.2-150600.4.18.1, 3.10.3-150700.3.9.1
freerdp-debuginfo - addressed in versions 2.4.0-150400.3.47.1, 2.11.2-150600.4.18.1, 3.10.3-150700.3.9.1
freerdp-proxy-debuginfo - addressed in versions 2.4.0-150400.3.47.1, 2.11.2-150600.4.18.1, 3.10.3-150700.3.9.1
freerdp-server - addressed in versions 2.4.0-150400.3.47.1, 2.11.2-150600.4.18.1, 3.10.3-150700.3.9.1
libuwac0-0 - addressed in versions 2.4.0-150400.3.47.1, 2.11.2-150600.4.18.1, 3.10.3-150700.3.9.1
freerdp-wayland - addressed in versions 2.4.0-150400.3.47.1, 2.11.2-150600.4.18.1, 3.10.3-150700.3.9.1
libfreerdp2 - update to 2.4.0-150400.3.47.1
libuwac0-0-debuginfo - addressed in versions 2.4.0-150400.3.47.1, 2.11.2-150600.4.18.1, 3.10.3-150700.3.9.1
freerdp - addressed in versions 2.4.0-150400.3.47.1, 2.11.2-150600.4.18.1, 3.10.3-150700.3.9.1
freerdp-debugsource - addressed in versions 2.4.0-150400.3.47.1, 2.11.2-150600.4.18.1, 3.10.3-150700.3.9.1
libfreerdp2-2-debuginfo - addressed in versions 2.11.2-150600.4.18.1, 2.11.7-150700.3.14.1
libfreerdp2-2 - addressed in versions 2.11.2-150600.4.18.1, 2.11.7-150700.3.14.1
winpr-devel - addressed in versions 2.11.2-150600.4.18.1, 3.10.3-150700.3.9.1
libwinpr2-2-debuginfo - addressed in versions 2.11.2-150600.4.18.1, 2.11.7-150700.3.14.1
libwinpr2-2 - addressed in versions 2.11.2-150600.4.18.1, 2.11.7-150700.3.14.1
libwinpr-devel - update to 2.11.7-9.0.1
libwinpr - update to 2.11.7-9.0.1
freerdp-libs - update to 2.11.7-9.0.1
freerdp-devel - update to 2.11.7-9.0.1
freerdp - update to 2.11.7-9.0.1
freerdp-doc - update to 2.11.7-9.0.1
freerdp2-server - update to 2.11.7-150700.3.14.1
freerdp2-debuginfo - update to 2.11.7-150700.3.14.1
freerdp2-debugsource - update to 2.11.7-150700.3.14.1
freerdp2-devel - update to 2.11.7-150700.3.14.1
freerdp2-server-debuginfo - update to 2.11.7-150700.3.14.1
freerdp2 - update to 2.11.7-150700.3.14.1
freerdp2-proxy-debuginfo - update to 2.11.7-150700.3.14.1
freerdp2-proxy - update to 2.11.7-150700.3.14.1
freerdp-devel - update to 2.11.8-3
libwinpr-devel - update to 2.11.8-3
freerdp-help - update to 2.11.8-3
libwinpr - update to 2.11.8-3
freerdp - update to 2.11.8-3
freerdp-debuginfo - update to 2.11.8-3
freerdp-debugsource - update to 2.11.8-3
libfreerdp-server-proxy3-3 - update to 3.10.3-150700.3.9.1
libfreerdp3-3 - update to 3.10.3-150700.3.9.1
libwinpr3-3-debuginfo - update to 3.10.3-150700.3.9.1
freerdp-proxy-plugins-debuginfo - update to 3.10.3-150700.3.9.1
freerdp-proxy-plugins - update to 3.10.3-150700.3.9.1
librdtk0-0 - update to 3.10.3-150700.3.9.1
freerdp-sdl-debuginfo - update to 3.10.3-150700.3.9.1
libfreerdp3-3-debuginfo - update to 3.10.3-150700.3.9.1
librdtk0-0-debuginfo - update to 3.10.3-150700.3.9.1
libwinpr3-3 - update to 3.10.3-150700.3.9.1
libfreerdp-server-proxy3-3-debuginfo - update to 3.10.3-150700.3.9.1
freerdp-sdl - update to 3.10.3-150700.3.9.1
freerdp - addressed in versions 3.24.0-1.fc42, 3.24.0-1.fc43, 3.24.0-1.fc44, 3.24.0-1.fc45, 3.24.2-1.fc42

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-h23r-3988-3wf3

• Multiple vulnerabilities in FreeRDP
• Fedora 45 update for freerdp
• Fedora 44 update for freerdp
• Fedora 43 update for freerdp
• Fedora 42 update for freerdp
• Fedora 42 update for freerdp
• SUSE update for freerdp
• SUSE update for freerdp
• SUSE update for freerdp2
• SUSE update for freerdp
• SUSE update for freerdp
• openEuler 24.03 LTS SP1 update for freerdp
• 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
• Red Hat Enterprise Linux 10 update for freerdp
• Red Hat Enterprise Linux 8 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 9 update for freerdp
• Red Hat Enterprise Linux 9 update for freerdp
• Anolis OS update for freerdp
• Red Hat Enterprise Linux 8 update for freerdp
• Red Hat Enterprise Linux 7 Extended Lifecycle Support update for freerdp