High severity8.8NVD Advisory· Published Jul 29, 2025· Updated Jun 17, 2026

CVE-2024-42655

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Emqx/Nanomq3 versions
cpe:2.3:a:emqx:nanomq:0.21.8:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:emqx:nanomq:0.21.8:*:*:*:*:*:*:*
- (no CPE)
- (no CPE)range: =0.21.10

Patches

Vulnerability mechanics

References

github.com/nanomq/nanomq/issues/1782nvdExploitIssue TrackingPatch
github.com/songxpu/bug_report/blob/master/MQTT/NanoMQ/CVE-2024-42655.mdnvdExploitThird Party Advisory

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cvss	0.572
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000