Vulnerabilities > CVE-2021-34431 - Memory Leak vulnerability in Eclipse Mosquitto
Attack vector
NETWORK Attack complexity
LOW Privileges required
SINGLE Confidentiality impact
NONE Integrity impact
NONE Availability impact
PARTIAL Summary
In Eclipse Mosquitto version 1.6 to 2.0.10, if an authenticated client that had connected with MQTT v5 sent a crafted CONNECT message to the broker a memory leak would occur, which could be used to provide a DoS attack against the broker.