CVE-2023-27321: Uncontrolled Resource Consumption in OPC UA .NET Standard Reference Server

CVE-2023-27321 · Severity: low · CVSS 3.1 · Published 2023-05-05

Uncontrolled Resource Consumption in OPC UA .NET Standard Reference Server

Technologies: OPCFoundation.NetStandard.Opc.Ua.Server (NuGet). Vendors: NuGet.

Quick answers

Is CVE-2023-27321 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2023-27321 being exploited in the wild.
How severe is CVE-2023-27321?
Low severity, with a CVSS score of 3.1, published 5 May 2023.
Which products and versions are affected?
OPCFoundation.NetStandard.Opc.Ua.Server (NuGet) ECOSYSTEM:introduced=0,fixed=1.4.371.86.
Is there a fix for CVE-2023-27321?
Yes. OPCFoundation.NetStandard.Opc.Ua.Server (NuGet): upgrade to 1.4.371.86 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2023-27321?
Check whether you run OPCFoundation.NetStandard.Opc.Ua.Server (NuGet) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • OPCFoundation.NetStandard.Opc.Ua.Server (NuGet): upgrade to 1.4.371.86 or later
    dotnet add package OPCFoundation.NetStandard.Opc.Ua.Server --version 1.4.371.86

Affected products

  • OPCFoundation.NetStandard.Opc.Ua.Server (NuGet) ECOSYSTEM:introduced=0,fixed=1.4.371.86

Identifiers

  • CVE-2023-27321
  • GHSA-vpf7-r2fv-75m9

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