Upstream information

CVE-2026-55191 at MITRE

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, FreeRDP clients that negotiate RDPGFX AVC444 with an H.264 decoder backend calculate the intermediate YUV444 allocation size in libfreerdp/codec/h264.c with 32-bit multiplication in avc444_ensure_buffer. A malicious RDP server can supply surface dimensions for which piDstStride multiplied by padDstHeight wraps to a small nonzero value, causing winpr_aligned_recalloc to allocate an undersized buffer before YUV420CombineToYUV444 writes using the actual stride and rectangle dimensions. This can cause a client crash and may permit code execution through attacker-influenced heap corruption. This issue is fixed in version 3.27.0.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having important severity.

CVSS v3 Scores
CVSS detail SUSE
Base Score 8.8
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
CVSSv3 Version 3.1
CVSS v4 Scores
CVSS detail CNA (GitHub)
Base Score 8.7
Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/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
Attack Vector Network
Attack Complexity Low
Attack Requirements None
Privileges Required None
User Interaction Passive
Vulnerable System Confidentiality Impact High
Vulnerable System Integrity Impact High
Vulnerable System Availability Impact High
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact None
CVSSv4 Version 4.0
SUSE Bugzilla entry: 1276371 [NEW]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • freerdp >= 3.27.1-1.1
  • freerdp-devel >= 3.27.1-1.1
  • freerdp-proxy >= 3.27.1-1.1
  • freerdp-proxy-plugins >= 3.27.1-1.1
  • freerdp-sdl >= 3.27.1-1.1
  • freerdp-server >= 3.27.1-1.1
  • freerdp-wayland >= 3.27.1-1.1
  • libfreerdp-server-proxy3-3 >= 3.27.1-1.1
  • libfreerdp3-3 >= 3.27.1-1.1
  • librdtk0-0 >= 3.27.1-1.1
  • libuwac0-0 >= 3.27.1-1.1
  • libwinpr3-3 >= 3.27.1-1.1
  • rdtk0-devel >= 3.27.1-1.1
  • uwac0-devel >= 3.27.1-1.1
  • winpr-devel >= 3.27.1-1.1
 Patchnames:
openSUSE-Tumbleweed-2026-11065

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 Affected
SUSE Linux Enterprise Module for Package Hub 15 SP7 freerdp Affected
SUSE Linux Enterprise Module for Package Hub 15 SP7 freerdp2 Affected
SUSE Linux Enterprise Server 15 SP7 freerdp Affected
SUSE Linux Enterprise Server 15 SP7 freerdp2 Affected
SUSE Linux Enterprise Server 16.0 freerdp Affected
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 Affected
SUSE Linux Enterprise Server for SAP applications 16.0 freerdp Affected
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 Affected
openSUSE Leap 16.0 freerdp Affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 12 SP5 freerdp Affected
SUSE Linux Enterprise Server 12 SP5 freerdp Affected
SUSE Linux Enterprise Server 12 SP5-LTSS freerdp Affected
SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security freerdp Affected
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 Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 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 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 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 Affected
openSUSE Leap 15.5 freerdp Affected
openSUSE Leap 15.6 freerdp Affected

SUSE Timeline for this CVE

CVE page created: Sat Jun 20 11:39:55 2026
CVE page last modified: Mon Aug 24 18:06:00 2026