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.
Published: 2025-10-07
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

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Tracking

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History

Mon, 03 Nov 2025 18:30:00 +0000


Wed, 08 Oct 2025 13:45:00 +0000

Type Values Removed Values Added
First Time appeared Openplcproject
Openplcproject openplc V3
Openplcproject openplc V3 Firmware
Vendors & Products Openplcproject
Openplcproject openplc V3
Openplcproject openplc V3 Firmware

Tue, 07 Oct 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 07 Oct 2025 14:00:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-775
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}


Subscriptions

Openplcproject Openplc V3 Openplc V3 Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: talos

Published:

Updated: 2025-11-03T17:44:59.045Z

Reserved: 2025-07-11T21:16:14.229Z

Link: CVE-2025-53476

cve-icon Vulnrichment

Updated: 2025-11-03T17:44:59.045Z

cve-icon NVD

Status : Deferred

Published: 2025-10-07T14:15:37.270

Modified: 2026-04-15T00:35:42.020

Link: CVE-2025-53476

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-10-08T13:38:41Z

Weaknesses