Heap Use-After-Free Vulnerability in NanoMQ by NanoMQ Team
CVE-2024-42651

7.5HIGH

Key Information:

Vendor

NanoMQ Team

Status
NanoMQ
Vendor
CVE Published:
29 July 2025

What is CVE-2024-42651?

A heap use-after-free vulnerability was identified in NanoMQ version 0.17.9, specifically in the sub_Ctx_handle component. This security flaw enables attackers to craft malicious SUBSCRIBE messages that can lead to a Denial of Service (DoS), disrupting the functionality of the affected service. This vulnerability highlights the importance of timely software updates and robust security measures to mitigate potential exploitation.

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References

https://github.com/nanomq/nanomq
https://github.com/nanomq/nanomq/issues/1217
https://github.com/songxpu/bug_report/blob/master/MQTT/Na...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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