# CVE-2025-4384

## Summary

- **CVE ID:** CVE-2025-4384
- **Severity:** MEDIUM
- **CVSS Score:** 6 (CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/AU:N/R:U/RE:M/U:Green)
- **CWE:** CWE-298
- **Published:** May 6, 2025
- **Last Modified:** Mar 13, 2026

## Description

The MQTT add-on of PcVue fails to verify that a remote device’s certificate has not already expired or has not yet become valid. This allows malicious devices to present certificates that are not rejected properly.

The use of a client certificate reduces the risk for random devices to take advantage of this flaw.

## Affected Products

- arcinfo — PcVue (16.3.0)
- arcinfo — PcVue (16.0)
- arcinfo — PcVue (15.0)

## References

- [CNA](https://www.pcvue.com/security/#SB2025-3)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.13%
- **EPSS Percentile:** 2.7

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-09._