Vulnerability · Published Feb 25, 2026 · Assigned by GitHub_M
CVE-2026-25941FreeRDP: vuln_1_15_1 RDPGFX WIRE_TO_SURFACE_2 Out-of-Bounds Read
Medium 4.3
In plain English
A medium-severity improper input validation in FreeRDP from FreeRDP. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
FreeRDP is a free implementation of the Remote Desktop Protocol. Versions on the 2.x branch prior to to 2.11.8 and on the 3.x branch prior to 3.23.0 have an out-of-bounds read vulnerability in the FreeRDP client's RDPGFX channel that allows a malicious RDP server to read uninitialized heap memory by sending a crafted WIRE_TO_SURFACE_2 PDU with a `bitmapDataLength` value larger than the actual data in the packet. This can lead to information disclosure or client crashes when a user connects to a malicious server. Versions 2.11.8 and 3.23.0 fix the issue.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.23 | freerdp | 3.23.0-r0 | ALPINE-CVE-2026-25941 |
| Alpine:v3.24 | freerdp | 3.23.0-r0 | ALPINE-CVE-2026-25941 |
| Debian:12 | freerdp2 | no fix listed | DEBIAN-CVE-2026-25941 |
| Debian:13 | freerdp3 | 3.15.0+dfsg-2.1+deb13u1 | DEBIAN-CVE-2026-25941 |
| Debian:14 | freerdp3 | 3.23.0+dfsg-1 | DEBIAN-CVE-2026-25941 |
| Ubuntu:22.04:LTS | freerdp2 | no fix listed | UBUNTU-CVE-2026-25941 |
| Ubuntu:24.04:LTS | freerdp3 | 3.5.1+dfsg1-0ubuntu1.4 | USN-8105-1 |
| Ubuntu:24.04:LTS | freerdp3 | 3.5.1+dfsg1-0ubuntu1.4 | UBUNTU-CVE-2026-25941 |
| Ubuntu:25.10 | freerdp3 | 3.16.0+dfsg-2ubuntu0.3 | UBUNTU-CVE-2026-25941 |
| Ubuntu:25.10 | freerdp3 | 3.16.0+dfsg-2ubuntu0.3 | USN-8105-1 |
Affected products (as reported)
Weakness: CWE-20, CWE-125 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N