# CVE-2025-53476

## Summary

- **CVE ID:** CVE-2025-53476
- **Severity:** MEDIUM
- **CVSS Score:** 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
- **CWE:** CWE-775
- **Published:** Oct 7, 2025
- **Last Modified:** Mar 13, 2026

## Description

A denial of service vulnerability exists in the ModbusTCP server functionality of OpenPLC _v3 a931181e8b81e36fadf7b74d5cba99b73c3f6d58. A specially crafted series of network connections can lead to the server not processing subsequent Modbus requests. An attacker can open a series of TCP connections to trigger this vulnerability.

## Affected Products

- OpenPLC — OpenPLC_v3 (a931181e8b81e36fadf7b74d5cba99b73c3f6d58)

## References

- [CNA](https://talosintelligence.com/vulnerability_reports/TALOS-2025-2223)
- [CVE](https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2223)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.46%
- **EPSS Percentile:** 38.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._