CVE-2025-62723

Name: CVE-2025-62723
Creator: NVD / NIST
Published: 2025-10-24T21:16:14.01+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.31%

Last modified Jun 17, 2026

CVE-2025-62723 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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. EPSS estimates a 0.31% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

EPSS Probability

0.31%

22.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-772

Affected Software

Vendor	Product	Versions
Flashmq	Flashmq	< 1.23.2

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

Timeline

Published: Oct 24, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-62723?

How severe is CVE-2025-62723?

CVE-2025-62723 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.

How do I fix CVE-2025-62723?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-62723?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST