CVE-2025-53476

Published Oct 7, 2025 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
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
Type Values Removed Values Added
Metrics ssvc

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

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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
talos
Published
Updated
Nov 3, 2025, 5:44 PM
Reserved
Jul 11, 2025, 9:16 PM
Status
Deferred
Published
Oct 7, 2025, 2:15 PM
Modified
Oct 8, 2026, 10:10 PM