High 7.5Published Dec 26, 2025

CVE-2025-59946NanoMQ has a Use After Free vulnerability via sub info list

Updated under an hour ago (Oct 27, 2026, 11:50 AM ET)

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Every CVE for nanomq

Exploited in the last 30 days

NanoMQ MQTT Broker (NanoMQ) is an Edge Messaging Platform. Prior to version 0.24.2, there is a classical data racing issue about sub info list which could result in heap use after free crash. This issue has been patched in version 0.24.2.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-416
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Dec 29, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

nanomq nanomq nanomq:nanomq (from the name)	before 0.24.4	CNA record
emqx nanomq emqx:nanomq	before 0.24.4	NVD

References

References

https://github.com/nanomq/nanomq/security/advisories/GHSA-xg37-23w7-72p5	x-refsource-confirm, vendor-advisory
https://github.com/nanomq/nanomq/issues/1863	x-refsource-misc, exploit, issue-tracking

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.