CVE-2024-42645 Details
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).
A vulnerability in FlashMQ version 1.14.0 allows remote attackers to cause an assertion failure by sending a crafted retained message. This issue arises when the message includes a non-zero topic alias, disrupting the broker's process of saving session and subscription states. The result is a crash of the MQTT broker, creating a denial-of-service condition.
Users are advised to upgrade to FlashMQ version 1.15.1 or later, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 30, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/songxpu/bug_report/blob/master/MQTT/FlashMQ/CVE-2024-42645.md | CISA-ADP | ExploitThird Party Advisory |
| https://github.com/halfgaar/FlashMQ | [email protected] | Product |
| https://github.com/songxpu/bug_report/blob/master/MQTT/FlashMQ/CVE-2024-42645.md | [email protected] | ExploitThird Party Advisory |
| https://www.flashmq.org/2024/06/17/flashmq-1-15-1-released/ | [email protected] | Release Notes |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-617 | Reachable Assertion | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| flashmq flashmq | 1.14.0 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Aug 6, 2025 | Initial Analysis | [email protected] |
| Jul 30, 2025 | CVE Modified | CISA-ADP |
| Jul 29, 2025 | New CVE Received | [email protected] |