CVE-2025-59946 json
NanoMQ has a Use After Free vulnerability via sub info list
published 2025-12-27 10 mo ago modified 2026-10-13 27 d ago also EUVD-2025-205461
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 31%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- emqx nanomq 0.24.4
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 10 mo ago
Exploit prediction
0.38% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/nanomq/nanomq/issues/1863 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- nanomq nanomq
Classification
- Weakness
-
- CWE-416 Use After Free
References
-
github.com
/nanomq/nanomq/issues/1863
exploit, issue-tracking
-
github.com
/nanomq/nanomq/security/advisories/GHSA-xg37-23w7-72p5
vendor-advisory
Sources
- CVE List CVE-2025-59946
- NVD CVE-2025-59946
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