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.
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Affected Vendors & Products
Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 03 Nov 2026 14:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | FreeRDP before 3.32.2 Certificate Identity Validation Bypass via tls_verify_certificate | |
| First Time appeared |
Freerdp
Freerdp freerdp |
|
| Weaknesses | CWE-295 | |
| CPEs | cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Freerdp
Freerdp freerdp |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-11-03T14:27:57.885Z
Reserved: 2026-11-03T12:26:31.384Z
Link: CVE-2026-121392
No data.
Status : Awaiting Analysis
Published: 2026-11-03T15:17:26.710
Modified: 2026-11-03T15:17:26.860
Link: CVE-2026-121392
No data.
OpenCVE Enrichment
Updated: 2026-11-03T15:30:08Z
Weaknesses