Unsigned versions of the DLLs distributed by the OPC Foundation may be replaced with malicious code.
Priority MEDIUM 40CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
Unsigned versions of the DLLs distributed by the OPC Foundation may be replaced with malicious code.
Why it matters now
EPSS 0.01028 63rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:opcfoundation:ua-.net-legacy:1.02.336.0:*:*:*:*:*:*:* | 1.02.336.0 | Vulnerable | OPC Foundation |
- cpe:2.3:a:opcfoundation:ua-.net-legacy:1.02.336.0:*:*:*:*:*:*:* Versions 1.02.336.0 Vulnerable ·OPC Foundation
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-12070
- 2026-10-03 Alias added: GHSA-c2m3-cg53-fc7m
References
More OPC Foundation Ua-.net-legacy vulnerabilities
- TI-2018-09034 An XXE vulnerability in the OPC UA Java and .NET Legacy Stack can allow remote attackers to trigger a denial of service. CVSS 3.0HIGH 8.2
- TI-2021-08921 Uncontrolled recursion in OPC Foundation OPC UA .NET Standard and OPC UA .NET Legacy CVSS 3.1HIGH 7.5
- 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-2017-12070 · CVE Program
- CVE-2017-12070 · NVD
- FIRST EPSS
- GHSA-c2m3-cg53-fc7m · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences