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CVE-2024-42512 — Vulnerability in...

MEDIUM

Security Update for the OPC UA .NET Standard Stack

Published March 3, 2025Updated May 27, 2025Source: osv

Summary

This security update resolves a vulnerability in the OPC UA .NET Standard Stack that allows an unauthorized attacker to bypass application authentication when the deprecated Basic128Rsa15 security policy is enabled. Note that the Basic128Rsa15 is disabled by default so most users will not be affected. When this patch is applied the Server closes all channels using the Basic128Rsa15 if an attack is detected. This introduces a DoS before any compromise can occur which is preferable to a compromise. To prevent this failure, applications must stop using Basic128Rsa15.

Advisory Timeline

  • First published March 3, 2025 (588 days ago).
  • Last revised May 27, 2025 — 85 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

NuGet
Update OPCFoundation.NetStandard.Opc.Ua.Core to 1.5.374.158 or later
dotnet add package OPCFoundation.NetStandard.Opc.Ua.Core --version 1.5.374.158

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: nuget (1).

PackageEcosystemAffectedFixed In
OPCFoundation.NetStandard.Opc.Ua.Core
nuget
0.0.3, 0.0.6, 0.0.7, 0.0.8 (+79 more)1.5.374.158

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 5.9 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References

Frequently Asked Questions

What is CVE-2024-42512?
Security Update for the OPC UA .NET Standard Stack This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 5.9/10).
How do I check if my project is affected by CVE-2024-42512?
CVE-2024-42512 affects OPCFoundation.NetStandard.Opc.Ua.Core. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2024-42512 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
5.9

Exploitation requires specific conditions or has limited impact. Remediate within weeks.

Also Known As

GHSA-h958-fxgg-g7w3

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