CVE-2025-62723

MEDIUM

FlashMQ < 1.23.2 - Authenticated Resource Exhaustion via Unreleased QoS Message Sessions

Title source: llm
STIX 2.1

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.

References (3)

Core 3

Scores

CVSS v3 4.3
EPSS 0.0028
EPSS Percentile 19.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-772
Status published
Products (1)
flashmq/flashmq < 1.23.2
Published Oct 24, 2025
Tracked Since Feb 18, 2026