CVE-2023-28366: The broker in Eclipse Mosquitto 1.3.2 through 2.x before 2.0.16 has a memory leak that can be abused remotely when a client sends many QoS 2 messages with duplicate message IDs, and fails to respond to PUBREC commands. This occurs because of mishandling of EAGAIN from the libc send function. CVE-2023-0809: In Mosquitto before 2.0.16, excessive memory is allocated based on malicious initial packets that are not CONNECT packets. CVE-2023-3592: In Mosquitto before 2.0.16, a memory leak occurs when clients send v5 CONNECT packets with a will message that contains invalid property types. Please stabilize >2.0.16.