An issue was discovered in Softing Industrial Automation OPC UA C++ SDK before 5.66, and…
Priority LOW 35CWE-415Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-415 and the CVSS impact.
Summary
An issue was discovered in Softing Industrial Automation OPC UA C++ SDK before 5.66, and uaToolkit Embedded before 1.40. Remote attackers to cause a denial of service (DoS) by sending crafted messages to a client or server. The server process may crash unexpectedly because of a double free, and must be restarted.
Why it matters now
EPSS 0.01309 70th 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 · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:softing:datafeed_opc_suite:*:*:*:*:*:*:*:* | before 5.18 | Vulnerable | Softing |
| cpe:2.3:a:softing:edgeconnector:*:*:*:*:*:*:*:* | up to 2.31 | Vulnerable | Softing |
| cpe:2.3:a:softing:opc:*:*:*:*:*:*:*:* | before 5.66 | Vulnerable | Softing |
| cpe:2.3:a:softing:secure_integration_server:*:*:*:*:*:*:*:* | up to 1.22 | Vulnerable | Softing |
| cpe:2.3:a:softing:th_scope:*:*:*:*:*:*:*:* | 3.5 | Vulnerable | Softing |
| cpe:2.3:a:softing:uagates:*:*:*:*:*:*:*:* | before 1.73 | Vulnerable | Softing |
| cpe:2.3:a:softing:uatoolkit_embedded:*:*:*:*:*:*:*:* | before 1.40 | Vulnerable | Softing |
- cpe:2.3:a:softing:datafeed_opc_suite:*:*:*:*:*:*:*:* Versions before 5.18 Vulnerable ·Softing
- cpe:2.3:a:softing:edgeconnector:*:*:*:*:*:*:*:* Versions up to 2.31 Vulnerable ·Softing
- cpe:2.3:a:softing:opc:*:*:*:*:*:*:*:* Versions before 5.66 Vulnerable ·Softing
- cpe:2.3:a:softing:secure_integration_server:*:*:*:*:*:*:*:* Versions up to 1.22 Vulnerable ·Softing
- cpe:2.3:a:softing:th_scope:*:*:*:*:*:*:*:* Versions 3.5 Vulnerable ·Softing
- cpe:2.3:a:softing:uagates:*:*:*:*:*:*:*:* Versions before 1.73 Vulnerable ·Softing
- cpe:2.3:a:softing:uatoolkit_embedded:*:*:*:*:*:*:*:* Versions before 1.40 Vulnerable ·Softing
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-40873
- 2026-10-03 Alias added: GHSA-4jmj-7wjp-8959
References
More Softing Datafeed Opc Suite vulnerabilities
- TI-2021-18857 An issue was discovered in Softing OPC UA C++ SDK before 5.70. CVSS 3.1HIGH 7.5
- TI-2021-17792 An issue was discovered in Softing Industrial Automation OPC UA C++ SDK before 5.66. CVSS 3.1HIGH 7.5
- TI-2021-18699 An issue was discovered in Softing OPC UA C++ SDK before 5.70. CVSS 3.1MEDIUM 6.5
Sources
- CVE-2021-40873 · CVE Program
- CVE-2021-40873 · NVD
- FIRST EPSS
- GHSA-4jmj-7wjp-8959 · GitHub Advisory Database · CC BY 4.0
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