CVE-2026-121392
HIGH
freerdp
NVD
CVSS Score
7.4
Severity
HIGH
Published
Nov 03, 2026
Vendor
freerdp
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.