CVE-2025-56352

In tinyMQTT commit 6226ade15bd4f97be2d196352e64dd10937c1962 2024-02-18, the broker mishandles protocol violations during CONNECT packet parsing. When receiving a CONNECT packet with a zero-length Client ID while CleanSession is set to 0, the broker correctly replies with a CONNACK return code 0x0...

CVE-2025-56352

CVE-2025-56352 affects the tinyMQTT broker. When processing a CONNECT packet with a zero-length Client ID and CleanSession=0, the broker returns CONNACK 0x02 (Identifier Rejected) but fails to explicitly close the TCP connection, leaving the socket open. Repeated invalid CONNECT attempts can exha...

CVE-2025-56352

In tinyMQTT commit 6226ade15bd4f97be2d196352e64dd10937c1962 2024-02-18, the broker mishandles protocol violations during CONNECT packet parsing. When receiving a CONNECT packet with a zero-length Client ID while CleanSession is set to 0, the broker correctly replies with a CONNACK return code 0x0...