CVE-2024-42512

Severity: high (CVSS 8.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-02-10 · updated 2026-10-15
Weakness: CWE-208

Description

Vulnerability in the OPC UA .NET Standard Stack before 1.5.374.158 allows an unauthorized attacker to bypass application authentication when the deprecated Basic128Rsa15 security policy is enabled.

Affected products

Opcfoundation Ua .Net Standard Stack: before 1.5.374.158 — fixed in 1.5.374.158

How to fix

Upgrade to a fixed version: Opcfoundation Ua .Net Standard Stack 1.5.374.158. Check the vendor advisory for mitigations.

References

https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2024-42512.pdf
https://cert-portal.siemens.com/productcert/html/ssa-858251.html

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