CVE-2026-121392
freerdp3: FreeRDP before 3.32.2 contains an improper certificate validation vulnerability in tls_verify_certificate() that acce...
CVE-2026-121392 is fixed in 23 products on 1 platform, first by DEBIAN-CVE-2026-121392, 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
0.0017
6th percentile
FreeRDP before 3.32.2 contains an improper certificate validation vulnerability in tls_verify_certificate() that accepts Common Name fallback despite non-matching SAN entries and matches IP literals against DNS strings. Man-in-the-middle attackers holding a certificate from a client-trusted CA can bypass server identity checks to intercept RDP sessions, including keystrokes, clipboard, and screen content.
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-2026-121392 | 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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