CVE-2025-59946

PoC —

CVSS 3.1

7.5 high

EPSS

<1%p30

Published

Dec 27, 2025 (Dec 27, 2025)

Modified

Jun 17, 2026

Description

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.

Vendors: emqx
Products: nanomq
Weakness: CWE-416
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.4%)

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