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).
Conclusion & alert: CVE-2024-42645 is rated Exploit Available (58.4/100): CVSS High severity, with low exploitation likelihood (EPSS 0.47%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.05% | 0.47% | +0.42% |
| 2 | 2026-01-06 | 0.05% | 0.05% | +0.01% |
| 3 | 2025-12-25 | — | 0.05% | — |
Full EPSS history (6 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| URL | Tags |
|---|---|
| https://github.com/halfgaar/FlashMQ | Product |
| https://github.com/songxpu/bug_report/blob/master/MQTT/FlashMQ/CVE-2024-42645.md | Exploit Third Party Advisory |
| https://www.flashmq.org/2024/06/17/flashmq-1-15-1-released/ | Release Notes |