Vulnerability · Published Feb 25, 2026 · Assigned by GitHub_M
CVE-2026-26271Buffer Overread in FreeRDP Icon Processing
Medium 5.5
In plain English
A medium-severity security flaw in FreeRDP from FreeRDP. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, a buffer overread in `freerdp_image_copy_from_icon_data()` (libfreerdp/codec/color.c) can be triggered by crafted RDP Window Icon (TS_ICON_INFO) data. The bug is reachable over the network when a client processes icon data from an RDP server (or from a man-in-the-middle). Version 3.23.0 fixes the issue.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.23 | freerdp | 3.23.0-r0 | ALPINE-CVE-2026-26271 |
| Alpine:v3.24 | freerdp | 3.23.0-r0 | ALPINE-CVE-2026-26271 |
| Debian:12 | freerdp2 | no fix listed | DEBIAN-CVE-2026-26271 |
| Debian:13 | freerdp3 | 3.15.0+dfsg-2.1+deb13u1 | DEBIAN-CVE-2026-26271 |
| Debian:14 | freerdp3 | 3.23.0+dfsg-1 | DEBIAN-CVE-2026-26271 |
| Ubuntu:22.04:LTS | freerdp2 | no fix listed | UBUNTU-CVE-2026-26271 |
| 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-2026-26271 |
| Ubuntu:25.10 | freerdp3 | 3.16.0+dfsg-2ubuntu0.3 | UBUNTU-CVE-2026-26271 |
| Ubuntu:25.10 | freerdp3 | 3.16.0+dfsg-2ubuntu0.3 | USN-8105-1 |
Affected products (as reported)
Weakness: CWE-126 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P