Upstream information

CVE-2026-31806 at MITRE

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, the gdi_surface_bits() function processes SURFACE_BITS_COMMAND messages sent by the RDP server. When the command is handled using NSCodec, the bmp.width and bmp.height values provided by the server are not properly validated against the actual desktop dimensions. A malicious RDP server can supply crafted bmp.width and bmp.height values that exceed the expected surface size. Because these values are used during bitmap decoding and memory operations without proper bounds checking, this can lead to a heap buffer overflow. Since the attacker can also control the associated pixel data transmitted by the server, the overflow may be exploitable to overwrite adjacent heap memory. This vulnerability is fixed in 3.24.0.

Other Security Trackers

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having important severity.

CVSS v3 Scores
CVSS detail National Vulnerability Database SUSE
Base Score 9.8 8.8
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network Network
Attack Complexity Low Low
Privileges Required None None
User Interaction None Required
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact High High
Availability Impact High High
CVSSv3 Version 3.1 3.1
CVSS v4 Scores
CVSS detail CNA (GitHub) SUSE
Base Score 9.3 7.5
Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X 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
Attack Vector Network Network
Attack Complexity Low High
Attack Requirements None None
Privileges Required None None
User Interaction None Active
Vulnerable System Confidentiality Impact High High
Vulnerable System Integrity Impact High High
Vulnerable System Availability Impact High High
Subsequent System Confidentiality Impact None None
Subsequent System Integrity Impact None None
Subsequent System Availability Impact None None
CVSSv4 Version 4.0 4.0
SUSE Bugzilla entry: 1259653 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Desktop 15 SP7
SUSE Linux Enterprise Server 15 SP7
SUSE Linux Enterprise Server for SAP Applications 15 SP7
SUSE Linux Enterprise Workstation Extension 15 SP7
  • freerdp2 >= 2.11.7-150700.3.14.1
  • freerdp2-devel >= 2.11.7-150700.3.14.1
  • freerdp2-proxy >= 2.11.7-150700.3.14.1
  • freerdp2-server >= 2.11.7-150700.3.14.1
  • libfreerdp2-2 >= 2.11.7-150700.3.14.1
  • libwinpr2-2 >= 2.11.7-150700.3.14.1
  • winpr2-devel >= 2.11.7-150700.3.14.1
 Patchnames:
SUSE-SLE-Product-WE-15-SP7-2026-1164
SUSE Linux Enterprise Module for Package Hub 15 SP7
  • libfreerdp2 >= 2.4.0-150400.3.47.1
  • libwinpr2 >= 2.4.0-150400.3.47.1
  • uwac0-0-devel >= 2.11.2-150600.4.18.1
  • winpr2-devel >= 2.11.7-150700.3.14.1
 Patchnames:
SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-1129
SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-1160
SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-1164
SUSE Linux Enterprise Server 12 SP5-LTSS
  • freerdp-devel >= 2.1.2-12.63.1
  • winpr2-devel >= 2.1.2-12.63.1
 Patchnames:
SUSE-SLE-SERVER-12-SP5-LTSS-2026-1165
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5
  • freerdp-devel >= 2.1.2-12.63.1
  • winpr2-devel >= 2.1.2-12.63.1
 Patchnames:
SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-1165
openSUSE Leap 15.6
  • freerdp >= 2.11.2-150600.4.18.1
  • freerdp-devel >= 2.11.2-150600.4.18.1
  • freerdp-proxy >= 2.11.2-150600.4.18.1
  • freerdp-server >= 2.11.2-150600.4.18.1
  • freerdp-wayland >= 2.11.2-150600.4.18.1
  • libfreerdp2-2 >= 2.11.2-150600.4.18.1
  • libuwac0-0 >= 2.11.2-150600.4.18.1
  • libwinpr2-2 >= 2.11.2-150600.4.18.1
  • uwac0-0-devel >= 2.11.2-150600.4.18.1
  • winpr-devel >= 2.11.2-150600.4.18.1
 Patchnames:
openSUSE-SLE-15.6-2026-1160
openSUSE Tumbleweed
  • freerdp >= 3.24.1-1.1
  • freerdp-devel >= 3.24.1-1.1
  • freerdp-proxy >= 3.24.1-1.1
  • freerdp-proxy-plugins >= 3.24.1-1.1
  • freerdp-sdl >= 3.24.1-1.1
  • freerdp-server >= 3.24.1-1.1
  • freerdp-wayland >= 3.24.1-1.1
  • freerdp2 >= 2.11.7-6.1
  • freerdp2-devel >= 2.11.7-6.1
  • freerdp2-proxy >= 2.11.7-6.1
  • freerdp2-server >= 2.11.7-6.1
  • libfreerdp-server-proxy3-3 >= 3.24.1-1.1
  • libfreerdp2-2 >= 2.11.7-6.1
  • libfreerdp3-3 >= 3.24.1-1.1
  • librdtk0-0 >= 3.24.1-1.1
  • libuwac0-0 >= 3.24.1-1.1
  • libwinpr2-2 >= 2.11.7-6.1
  • libwinpr3-3 >= 3.24.1-1.1
  • rdtk0-devel >= 3.24.1-1.1
  • uwac0-devel >= 3.24.1-1.1
  • winpr-devel >= 3.24.1-1.1
  • winpr2-devel >= 2.11.7-6.1
 Patchnames:
openSUSE-Tumbleweed-2026-10408
openSUSE-Tumbleweed-2026-10459

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Desktop 15 SP7 freerdp Affected
SUSE Linux Enterprise Desktop 15 SP7 freerdp2 Released
SUSE Linux Enterprise Module for Package Hub 15 SP7 freerdp Released
SUSE Linux Enterprise Module for Package Hub 15 SP7 freerdp2 Released
SUSE Linux Enterprise Server 15 SP7 freerdp Affected
SUSE Linux Enterprise Server 15 SP7 freerdp2 Released
SUSE Linux Enterprise Server 16.0 freerdp In progress
SUSE Linux Enterprise Server 16.1 freerdp Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 freerdp Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 freerdp2 Released
SUSE Linux Enterprise Server for SAP applications 16.0 freerdp In progress
SUSE Linux Enterprise Server for SAP applications 16.1 freerdp Affected
SUSE Linux Enterprise Workstation Extension 15 SP7 freerdp Affected
SUSE Linux Enterprise Workstation Extension 15 SP7 freerdp2 Released
openSUSE Leap 15.6 freerdp Released
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise Server 12 SP5 freerdp Affected
SUSE Linux Enterprise Server 12 SP5-LTSS freerdp Released
SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security freerdp Released
SUSE Linux Enterprise Server 15 SP4 freerdp Affected
SUSE Linux Enterprise Server 15 SP5 freerdp Affected
SUSE Linux Enterprise Server 15 SP6 freerdp Affected
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 freerdp Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 freerdp Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP6 freerdp Affected
Products past their end of life and not receiving proactive updates anymore.
SUSE Linux Enterprise Desktop 12 SP2 freerdp Affected
SUSE Linux Enterprise Desktop 12 SP3 freerdp Affected
SUSE Linux Enterprise Desktop 12 SP4 freerdp Affected
SUSE Linux Enterprise Desktop 15 SP4 freerdp Affected
SUSE Linux Enterprise Desktop 15 SP5 freerdp Affected
SUSE Linux Enterprise Desktop 15 SP6 freerdp Affected
SUSE Linux Enterprise Module for Package Hub 15 SP4 freerdp Affected
SUSE Linux Enterprise Module for Package Hub 15 SP5 freerdp Affected
SUSE Linux Enterprise Module for Package Hub 15 SP6 freerdp Affected
SUSE Linux Enterprise Server 12 SP2 freerdp Affected
SUSE Linux Enterprise Server 12 SP3 freerdp Affected
SUSE Linux Enterprise Server 12 SP4 freerdp Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 freerdp Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 freerdp Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 freerdp Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 freerdp Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP5 freerdp Affected
SUSE Linux Enterprise Software Development Kit 12 SP2 freerdp Affected
SUSE Linux Enterprise Software Development Kit 12 SP3 freerdp Affected
SUSE Linux Enterprise Software Development Kit 12 SP4 freerdp Affected
SUSE Linux Enterprise Software Development Kit 12 SP5 freerdp Affected
SUSE Linux Enterprise Workstation Extension 12 SP2 freerdp Affected
SUSE Linux Enterprise Workstation Extension 12 SP3 freerdp Affected
SUSE Linux Enterprise Workstation Extension 12 SP4 freerdp Affected
SUSE Linux Enterprise Workstation Extension 12 SP5 freerdp Affected
SUSE Linux Enterprise Workstation Extension 15 SP4 freerdp Affected
SUSE Linux Enterprise Workstation Extension 15 SP5 freerdp Affected
SUSE Linux Enterprise Workstation Extension 15 SP6 freerdp Affected
openSUSE Leap 15.4 freerdp Released
openSUSE Leap 15.5 freerdp Affected

SUSE Timeline for this CVE

CVE page created: Fri Mar 13 20:00:06 2026
CVE page last modified: Thu Apr 2 01:53:47 2026