Security Advisory
CVE-2025-62723
4.3
MEDIUM
Vulnerability Description
FlashMQ is a MQTT broker/server, designed for multi-CPU environments. Prior to version 1.23.2, any authenticated user can create sessions and have them collect QoS messages. When not sent to a client, these are then not released upon (eventual) session expiration. Version 1.23.2 fixes the issue.
Published Date
October 24, 2025
Official Source
NIST NVD Advisory