A Privilege Elevation vulnerability in OPC UA .NET Standard Stack 1.4.363.107 could allow…
Priority LOW 20CWE-295Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-295.
Summary
A Privilege Elevation vulnerability in OPC UA .NET Standard Stack 1.4.363.107 could allow a rogue application to establish a secure connection.
Why it matters now
EPSS 0.00311 24th percentileScored 2026-11-07
Fix Fixed OPCFoundation.NetStandard.Opc.Ua.Core (NuGet): 1.4.365.10
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | OPCFoundation.NetStandard.Opc.Ua.Core (NuGet) | before 1.4.365.10 | 1.4.365.10 | Patch available | GHSA-mjww-934m-h4jw |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- OPCFoundation.NetStandard.Opc.Ua.Core (NuGet) Vendor— Affected before 1.4.365.10 Fixed in 1.4.365.10 Patch available GHSA-mjww-934m-h4jw
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:opcfoundation:ua-.netstandard:*:*:*:*:*:*:*:* | before 1.4.365.10 | Vulnerable | OPC Foundation |
- cpe:2.3:a:opcfoundation:ua-.netstandard:*:*:*:*:*:*:*:* Versions before 1.4.365.10 Vulnerable ·OPC Foundation
Remediation
- Fix · GHSA-mjww-934m-h4jw OPCFoundation.NetStandard.Opc.Ua.Core (NuGet) Fixed in 1.4.365.10 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-29457
- 2026-10-03 Alias added: GHSA-mjww-934m-h4jw
References
Advisory 3
More OPC Foundation Ua-.netstandard vulnerabilities
- 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-2023-14784 The OPC UA .NET Standard Reference Server before 1.4.371.86. CVSS 3.1MEDIUM 5.3
- 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
Sources
- CVE-2020-29457 · CVE Program
- CVE-2020-29457 · NVD
- FIRST EPSS
- GHSA-mjww-934m-h4jw · GitHub Advisory Database · CC BY 4.0
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