High severity7.5NVD Advisory· Published Jul 29, 2025· Updated Jun 17, 2026

CVE-2024-42651

Description

NanoMQ v0.17.9 was discovered to contain a heap use-after-free vulnerability via the component sub_Ctx_handle. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted SUBSCRIBE message.

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

Affected products

Emqx/Nanomq3 versions
cpe:2.3:a:emqx:nanomq:0.17.9:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:emqx:nanomq:0.17.9:*:*:*:*:*:*:*
- (no CPE)
- (no CPE)range: <0.17.9

Patches

Vulnerability mechanics

References

github.com/nanomq/nanomq/issues/1217nvdExploitIssue Tracking
github.com/songxpu/bug_report/blob/master/MQTT/NanoMQ/CVE-2024-42651.mdnvdExploitThird Party Advisory

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