CVE-2025-59947
Critical
Description
NanoMQ is a messaging broker/bus for IoT Edge & SDV. Versions prior to 0.24.4 have a buffer overflow case while the PUBLISH packets trigger both shared subscription and vanila subscription. This is fixed in version 0.24.4. As a workaround, disable shared subscription.
SeverityCritical
CVSS9.0
Exploit probability—
ProductEmqx Nanomq
PublishedDec 15, 2025
First seenDec 15, 2025
Weakness typeCWE-120CWE-120
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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