CVE-2026-67294
Gravedad CVSS v4.0:
CRÍTICA
Tipo:
CWE-295
Validación incorrecta de certificados
Fecha de publicación:
01/08/2026
Última modificación:
01/08/2026
Descripción
*** Pendiente de traducción *** FreeRDP before 3.29.0 improperly validates the Extended Key Usage (EKU) purpose of the peer certificate during client-side server TLS authentication. In x509_utils_verify(), when server-purpose (X509_PURPOSE_SSL_SERVER) verification fails, the code falls back to client-purpose and any-purpose verification, so a trusted, hostname-matching certificate valid only for clientAuth can be accepted as the RDP server certificate. In environments relying on EKU separation between client and server certificates, this allows a clientAuth-only certificate issued by a trusted CA to bypass server certificate purpose validation.
Impacto
Puntuación base 4.0
9.30
Gravedad 4.0
CRÍTICA
Puntuación base 3.x
5.90
Gravedad 3.x
MEDIA



