Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2025-11935

Gravedad CVSS v4.0:
MEDIA
Tipo:
CWE-326 Fortaleza de cifrado inadecuada
Fecha de publicación:
21/11/2025
Última modificación:
21/11/2025

Descripción

*** Pendiente de traducción *** With TLS 1.3 pre-shared key (PSK) a malicious or faulty server could ignore the request for PFS (perfect forward secrecy) and the client would continue on with the connection using PSK without PFS. This happened when a server responded to a ClientHello containing psk_dhe_ke without a key_share extension. The re-use of an authenticated PSK connection that on the clients side unexpectedly did not have PFS, reduces the security of the connection.