CVE-2026-121392
Publication date 3 November 2026
Last updated 9 November 2026
Ubuntu priority
Description
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| freerdp | 26.10 stonking | Not in release |
| 26.04 LTS resolute | Not in release | |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
|
| freerdp2 | 26.10 stonking | Not in release |
| 26.04 LTS resolute | Not in release | |
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| freerdp3 | 26.10 stonking |
Fixed in 3.32.2+dfsg-0ubuntu0.26.10.1
|
| 26.04 LTS resolute |
Fixed in 3.32.2+dfsg-0ubuntu0.26.04.1
|
|
| 24.04 LTS noble |
Fixed in 3.32.2+dfsg-0ubuntu0.24.04.1
|
|
| 22.04 LTS jammy | Not in release |
Severity score breakdown
CVSS version:
Base score
9.1 · Critical
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Base score
7.4 · High
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
References
Related Ubuntu Security Notices (USN)
- USN-9007-1
- FreeRDP vulnerabilities
- 9 November 2026