CVE-2024-42646

Name: CVE-2024-42646
Creator: NVD / NIST
Published: 2025-07-14T17:15:31.767+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.41%

Last modified Jun 17, 2026

CVE-2024-42646 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A segmentation fault in NanoMQ v0.21.10 allows attackers to cause a Denial of Service (DoS) via crafted messages.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

Description

A segmentation fault in NanoMQ v0.21.10 allows attackers to cause a Denial of Service (DoS) via crafted messages.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.41%

32.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Emqx	Nanomq	0.21.10

References

https://github.com/nanomq/nanomqProduct
https://github.com/songxpu/bug_report/blob/master/MQTT/NanoMQ/CVE-2024-42646.mdExploit, Third Party Advisory

Timeline

Published: Jul 14, 2025
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-42646?

A segmentation fault in NanoMQ v0.21.10 allows attackers to cause a Denial of Service (DoS) via crafted messages.

How severe is CVE-2024-42646?

CVE-2024-42646 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.

How do I fix CVE-2024-42646?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-42646?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST