CVE-2026-121406
freerdp3: FreeRDP before 3.32.2 allows a client assertion abort because rdpgfx_on_data_received rejects only negative zgfx_deco...
CVE-2026-121406 is fixed in 23 products on 1 platform, first by DEBIAN-CVE-2026-121406, released November 4, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
n/a
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0023
14th percentile
FreeRDP before 3.32.2 allows a client assertion abort because rdpgfx_on_data_received rejects only negative zgfx_decompress status and passes the resulting null output pointer to Stream_StaticConstInit. A malicious RDP server can send a zero-output ZGFX payload on the RDPGFX channel after session activation to terminate the client.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| freerdp-proxy · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | freerdp-proxy 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| freerdp-proxy-modules · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | freerdp-proxy-modules 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| freerdp-sdl · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | freerdp-sdl 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| freerdp-shadow-x11 · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | freerdp-shadow-x11 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| freerdp-wayland · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | freerdp-wayland 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| freerdp-x11 · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | freerdp-x11 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| freerdp3 · Debian 14 | 3.32.2+dfsg-1 | DEBIAN-CVE-2026-121406 | Nov 4, 2026 |
| freerdp3-proxy · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | freerdp3-proxy 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| freerdp3-proxy-modules · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | freerdp3-proxy-modules 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| freerdp3-sdl · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | freerdp3-sdl 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| freerdp3-shadow-x11 · Ubuntu 24.04.5 LTS (noble) | 3.32.2+dfsg-0ubuntu0.24.04.1 | freerdp3-shadow-x11 3.32.2+dfsg-0ubuntu0.24.04.1 | Nov 11, 2026 |
| freerdp3-shadow-x11 · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | freerdp3-shadow-x11 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| freerdp3-wayland · Ubuntu 24.04.5 LTS (noble) | 3.32.2+dfsg-0ubuntu0.24.04.1 | freerdp3-wayland 3.32.2+dfsg-0ubuntu0.24.04.1 | Nov 11, 2026 |
| freerdp3-wayland · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | freerdp3-wayland 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| freerdp3-x11 · Ubuntu 24.04.5 LTS (noble) | 3.32.2+dfsg-0ubuntu0.24.04.1 | freerdp3-x11 3.32.2+dfsg-0ubuntu0.24.04.1 | Nov 11, 2026 |
| freerdp3-x11 · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | freerdp3-x11 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| libfreerdp-client3-3 · Ubuntu 24.04.5 LTS (noble) | 3.32.2+dfsg-0ubuntu0.24.04.1 | libfreerdp-client3-3 3.32.2+dfsg-0ubuntu0.24.04.1 | Nov 11, 2026 |
| libfreerdp-client3-3 · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | libfreerdp-client3-3 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| libfreerdp-server-proxy3-3 · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | libfreerdp-server-proxy3-3 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| libfreerdp-server3-3 · Ubuntu 24.04.5 LTS (noble) | 3.32.2+dfsg-0ubuntu0.24.04.1 | libfreerdp-server3-3 3.32.2+dfsg-0ubuntu0.24.04.1 | Nov 11, 2026 |
| libfreerdp-server3-3 · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | libfreerdp-server3-3 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| libfreerdp-shadow-subsystem3-3 · Ubuntu 24.04.5 LTS (noble) | 3.32.2+dfsg-0ubuntu0.24.04.1 | libfreerdp-shadow-subsystem3-3 3.32.2+dfsg-0ubuntu0.24.04.1 | Nov 11, 2026 |
| libfreerdp-shadow-subsystem3-3 · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | libfreerdp-shadow-subsystem3-3 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| libfreerdp-shadow3-3 · Ubuntu 24.04.5 LTS (noble) | 3.32.2+dfsg-0ubuntu0.24.04.1 | libfreerdp-shadow3-3 3.32.2+dfsg-0ubuntu0.24.04.1 | Nov 11, 2026 |
| libfreerdp-shadow3-3 · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | libfreerdp-shadow3-3 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| libfreerdp3-3 · Ubuntu 24.04.5 LTS (noble) | 3.32.2+dfsg-0ubuntu0.24.04.1 | libfreerdp3-3 3.32.2+dfsg-0ubuntu0.24.04.1 | Nov 11, 2026 |
| libfreerdp3-3 · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | libfreerdp3-3 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| libwinpr-tools3-3 · Ubuntu 24.04.5 LTS (noble) | 3.32.2+dfsg-0ubuntu0.24.04.1 | libwinpr-tools3-3 3.32.2+dfsg-0ubuntu0.24.04.1 | Nov 11, 2026 |
| libwinpr-tools3-3 · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | libwinpr-tools3-3 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| libwinpr3-3 · Ubuntu 24.04.5 LTS (noble) | 3.32.2+dfsg-0ubuntu0.24.04.1 | libwinpr3-3 3.32.2+dfsg-0ubuntu0.24.04.1 | Nov 11, 2026 |
| libwinpr3-3 · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | libwinpr3-3 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| winpr-utils · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | winpr-utils 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
| winpr3-utils · Ubuntu 24.04.5 LTS (noble) | 3.32.2+dfsg-0ubuntu0.24.04.1 | winpr3-utils 3.32.2+dfsg-0ubuntu0.24.04.1 | Nov 11, 2026 |
| winpr3-utils · Ubuntu 26.04.1 LTS (resolute) | 3.32.2+dfsg-0ubuntu0.26.04.1 | winpr3-utils 3.32.2+dfsg-0ubuntu0.26.04.1 | Nov 11, 2026 |
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