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CVE-2021-34433

HIGH CVSS: 7.5 Published: 2021-08-20 Modified: 2026-06-17

Description

In Eclipse Californium version 2.0.0 to 2.6.4 and 3.0.0-M1 to 3.0.0-M3, the certificate based (x509 and RPK) DTLS handshakes accidentally succeeds without verifying the server side's signature on the client side, if that signature is not included in the server's ServerKeyExchange.

Affected Platforms

Eclipse Californium

Weakness Type

CWE-322, CWE-347

References