Vulnerability in Emqx Nanomq
CVE-2024-42655
An access control issue in NanoMQ v0.21.10 allows attackers to bypass security restrictions and access sensitive system topic messages using MQTT wildcard characters.
EPSS: 0.004 (28.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Emqx Nanomq — versions 0.21.8
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Product)
- cve@mitre.org (Exploit, Patch, Issue Tracking)
- cve@mitre.org (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2024-42655?
- CVE-2024-42655 is a high-severity vulnerability in Emqx Nanomq, classified under Improper Access Control. CVSS score: 8.8/10. Published 2025-07-29.
- How severe is CVE-2024-42655?
- High severity. CVSS v3 base score is 8.8 out of 10.