{"id":"CVE-2026-121392","title":"FreeRDP before 3.32.2 Certificate Identity Validation Bypass via tls_verify_certificate","summary":"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…","severity":"high","cvss":7.4,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","cvssSource":"cna","cwe":["CWE-295"],"vendor":"FreeRDP","product":"FreeRDP","affected":["FreeRDP < 3.32.2"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-11-03T17:48:51.108013Z"},"published":"2026-11-03","updated":"2026-11-03","sourceUpdated":"2026-11-03T18:31:19.966Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121392","references":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-jq25-3374-4262","label":"GitHub Security Advisory (GHSA-jq25-3374-4262)"},{"url":"https://www.vulncheck.com/advisories/freerdp-before-3.32.2-certificate-identity-validation-bypass-via-tls-verify-certificate","label":"VulnCheck Advisory: FreeRDP before 3.32.2 Certificate Identity Validation Bypass via tls_verify_certificate"}],"tags":["cve.org"],"epss":0.00167,"epssPercentile":0.0598,"ingestedAt":"2026-11-05T20:33:06.361Z","slug":"CVE-2026-121392","body":"## Overview\n\nFreeRDP 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.\n\n## Affected\n\n- `FreeRDP < 3.32.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":40.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}