Denial of Service Vulnerability in OpenPLC V3 by OpenPLC
CVE-2025-54811

6.1MEDIUM

Key Information:

Vendor

Openplc V3

Status
Openplc V3
Vendor
CVE Published:
1 October 2025

What is CVE-2025-54811?

The OpenPLC V3 software is impacted by a vulnerability in the enipThread function caused by the absence of a return value, which may lead to system crashes. This flaw can be exploited remotely without requiring user authentication, particularly through the repeated launching of the same server instance or unexpected server termination. When exploited, it results in a Denial of Service (DoS) situation for the PLC runtime, effectively disrupting automation processes and halting control logic managed by OpenPLC, which could significantly impact operational efficiency in industrial environments.

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Affected Version(s)

OpenPLC_V3 0

References

https://www.cisa.gov/news-events/ics-advisories/icsa-25-2...
https://github.com/thiagoralves/OpenPLC_v3

CVSS V4

Score:
6.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Renato Garreton of TryHackMe reported this vulnerability to CISA.
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