VulnerabilityAnalyzed

CVE-2025-62723

FlashMQ is a MQTT broker/server, designed for multi-CPU environments.

MEDIUM 4.3EPSS 0.32%

Does this matter?

Lower severity and a low EPSS score (0.32%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
EPSS: 0.32% probability · 25th percentile
CISA KEV: Not listed
Weakness: CWE-772
Affected: flashmq/flashmq
Source: security-advisories@github.com

References

https://github.com/halfgaar/FlashMQ/commit/e86c49360ef4387440c97f591770cdb9284b4ee9Patch
https://github.com/halfgaar/FlashMQ/issues/154Issue Tracking
https://github.com/halfgaar/FlashMQ/security/advisories/GHSA-7mhp-22q4-r6vvPatch, Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.