CVE-2024-42645

HIGH

Published Jul 29, 2025 Modified Aug 6, 2025 CWE-617

Description

An issue in FlashMQ v1.14.0 allows attackers to cause an assertion failure via sending a crafted retain message, leading to a Denial of Service (DoS).

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-617 CWE-617

Affected Products

Vendor	Product	Versions
flashmq	flashmq	All

References

Exploits

https://github.com/songxpu/bug_report/blob/master/MQTT/FlashMQ/CVE-2024-42645.md https://github.com/songxpu/bug_report/blob/master/MQTT/FlashMQ/CVE-2024-42645.md

Other References

https://github.com/halfgaar/FlashMQ https://www.flashmq.org/2024/06/17/flashmq-1-15-1-released/

Frequently Asked Questions

What is CVE-2024-42645? +

An issue in FlashMQ v1.14.0 allows attackers to cause an assertion failure via sending a crafted retain message, leading to a Denial of Service (DoS). It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-42645? +

CVE-2024-42645 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-42645? +

CVE-2024-42645 affects products from flashmq, specifically: flashmq. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-42645? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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