Unauthenticated Remote Access Vulnerability in CODESYS OPC UA Server by CODESYS GmbH
CVE-2025-1468

7.5HIGH

Key Information:

Vendor

Codesys

Status
Codesys Runtime Toolkit
Vendor
CVE Published:
18 March 2025

What is CVE-2025-1468?

An unauthenticated remote attacker can exploit a vulnerability in the CODESYS OPC UA Server when the non-default Basic128Rsa15 security policy is in use, potentially allowing them to access sensitive information including authentication credentials. This exposure poses a significant risk to the integrity and confidentiality of the system's operations.

Affected Version(s)

CODESYS Runtime Toolkit 0 < 3.5.21.0

References

https://cert.vde.com/en/advisories/VDE-2025-022

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Tom Tervoort from Secura B.V.
.