CVE-2022-29862: Security Update for the OPC UA .NET Standard Stack
Summary
CVE-2022-29862: Security Update for the OPC UA .NET Standard Stack. Affects OPCFoundation.NetStandard.Opc.Ua.Core versions < 1.4.368.58. Fixed in 1.4.368.58. How to fix ↓
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Background
The OPC UA .NET Standard Stack is a package that provides a .NET implementation of the OPC Unified Architecture (UA) protocol. It allows developers to create OPC UA client and server applications in the .NET framework. The package is widely used in industrial automation and control systems. However, a vulnerability has been discovered in the OPC UA .NET Standard Stack that can be exploited by a malicious client or server to cause a peer to hang during secure channel creation.
Vulnerability Detail
The vulnerability in the OPC UA .NET Standard Stack allows an attacker to send a carefully crafted message during secure channel creation, causing a peer to hang. This can lead to a denial of service (DoS) condition, where the affected peer becomes unresponsive and unable to process further requests. The vulnerability has a CVSS score of 7.5, indicating a high severity level. It is important to note that this vulnerability only affects versions of the package up to 1.4.368.53.
How To Fix
Latest published version: 2.0.1 as of 23 Oct 2026
Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
1.4.368.58
This is the first release that contains the fix.
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Workaround
There is no known workaround for this vulnerability. It is essential to update the package to the fixed version to mitigate the risk of exploitation.
Conclusion
The OPC UA .NET Standard Stack is vulnerable to a DoS vulnerability that can be exploited by a malicious client or server. To mitigate this risk, it is recommended to update the package to version 1.4.368.58 or later. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for OPCFoundation.NetStandard.Opc.Ua.Core →
FAQ
The OPC UA .NET Standard Stack is a package that provides a .NET implementation of the OPC Unified Architecture (UA) protocol. It is used to create OPC UA client and server applications in the .NET framework.
This vulnerability allows a malicious client or server to cause a peer to hang during secure channel creation. This can result in a denial of service (DoS) condition, rendering the affected peer unresponsive.
The vulnerability has a CVSS score of 7.5, indicating a high severity level.
To fix this vulnerability, update the OPC UA .NET Standard Stack package to version 1.4.368.58 or later.
No, there is no known workaround for this vulnerability. It is crucial to update the package to the fixed version.
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