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CVE-2025-59946

Good to know:

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Date: December 26, 2025

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.

Severity Score

Related Resources (4)

https://nvd.nist.gov/vuln/detail/CVE-2025-59946
https://github.com/nanomq/nanomq/security/advisories/GHSA-xg37-23w7-72p5
https://github.com/nanomq/nanomq/issues/1863
https://www.mend.io/vulnerability-database/CVE-2025-59946

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

Top Fix

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Upgrade Version

Upgrade to version https://github.com/nanomq/NanoNNG.git - 0.24.2

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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