CVE-2026-121392
FreeRDP before 3.32.2 Certificate Identity Validation Bypass via tls_verify_certificate
CVSS Score
7.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-295 |
| Vendor | freerdp |
| Product | freerdp |
| Published | Nov 3, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
FreeRDP / FreeRDP
0 < 3.32.2