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TI-2023-14784 Aliases CVE-2023-31048GHSA-4cvp-hr63-822j

The OPC UA .NET Standard Reference Server before 1.4.371.86.

Priority LOW 31CWE-209Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-209.

Summary

The OPC UA .NET Standard Reference Server before 1.4.371.86. places sensitive information into an error message that may be seen remotely.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00794 56th percentileScored 2026-11-07
Fix Fixed OPCFoundation.NetStandard.Opc.Ua.Core (NuGet): 1.4.371.86OPCFoundation.NetStandard.Opc.Ua.Server (NuGet): 1.4.371.86

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—OPCFoundation.NetStandard.Opc.Ua.Core (NuGet)before 1.4.371.861.4.371.86Patch availableGHSA-4cvp-hr63-822j
—OPCFoundation.NetStandard.Opc.Ua.Server (NuGet)before 1.4.371.861.4.371.86Patch availableGHSA-4cvp-hr63-822j
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • OPCFoundation.NetStandard.Opc.Ua.Core (NuGet) Vendor— Affected before 1.4.371.86 Fixed in 1.4.371.86 Patch available GHSA-4cvp-hr63-822j
  • OPCFoundation.NetStandard.Opc.Ua.Server (NuGet) Vendor— Affected before 1.4.371.86 Fixed in 1.4.371.86 Patch available GHSA-4cvp-hr63-822j

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:opcfoundation:ua-.netstandard:*:*:*:*:*:*:*:*before 1.4.371.86VulnerableOPC Foundation
  • cpe:2.3:a:opcfoundation:ua-.netstandard:*:*:*:*:*:*:*:* Versions before 1.4.371.86 Vulnerable ·OPC Foundation

Remediation

  • Fix · GHSA-4cvp-hr63-822j OPCFoundation.NetStandard.Opc.Ua.Core (NuGet) Fixed in 1.4.371.86 Advisory →
  • Fix · GHSA-4cvp-hr63-822j OPCFoundation.NetStandard.Opc.Ua.Server (NuGet) Fixed in 1.4.371.86 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-31048
  2. 2026-10-03 Alias added: GHSA-4cvp-hr63-822j

References

Advisory 2

Other 4

  • TI-2023-12056 Uncontrolled resource consumption in OPC Foundation UA .NET Standard CVSS 3.0HIGH 7.5
  • TI-2019-13805 In OPC Foundation OPC UA .NET Standard codebase 1.4.357.28, servers do not create… CVSS 3.1HIGH 7.4
  • TI-2018-05465 An issue was discovered in OPC UA .NET Standard Stack and Sample Code before GitHub… CVSS 3.0MEDIUM 5.3
  • TI-2018-08667 Failure to validate certificates in OPC Foundation UA Client Applications communicating… CVSS 3.0MEDIUM 5.3
  • TI-2020-17691 A Privilege Elevation vulnerability in OPC UA .NET Standard Stack 1.4.363.107 could allow… CVSS 3.1MEDIUM 4.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences