CVE-2025-59946
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductEmqx Nanomq
PublishedDec 27, 2025
First seenDec 27, 2025
Weakness typeCWE-416Use after free
How to fix
Update
- emqx nanomq0.24.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| emqx nanomq | v < 0.24.4 | 0.24.4 |
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