CVE-2024-42512 Security Update for the OPC UA .NET Standard Stack

What is CVE-2024-42512?

CVE-2024-42512 is a high-severity authentication bypass vulnerability in n/a, published on 10 Feb 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-208

Which versions are affected by CVE-2024-42512?

2 open source packages ship an affected version, including OPCFoundation.NetStandard.Opc.Ua.Core. It affects 1 product.

Products include Opcfoundation Ua .Net Standard Stack.

How do I fix CVE-2024-42512?

Upgrade OPCFoundation.NetStandard.Opc.Ua.Core to 1.5.374.158 or later.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2024-42512 being exploited?

There is no known exploitation of CVE-2024-42512 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2022-33916 Exposure of Sensitive Information in OPCFoundation.NetStandard.Opc.Ua.Server High 7.5
• CVE-2022-29862 Security Update for the OPC UA .NET Standard Stack High 7.5
• CVE-2022-29863 Memory Allocation with Excessive Size Value in OPCFoundation.NetStandard.Opc.Ua.Core High 7.5
• CVE-2022-29864 Uncontrolled Resource Consumption in OPCFoundation.NetStandard.Opc.Ua.Core High 7.5
• CVE-2022-29865 Incorrect Implementation of Authentication Algorithm in OPCFoundation.NetStandard.Opc.Ua.Core High 7.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-h958-fxgg-g7w3.