CVE-2021-40873
Last modified
CVE-2021-40873 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 1.27% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Softing | Datafeed Opc Suite | < 5.18 |
| Softing | Edgeconnector | <= 2.31 |
| Softing | Opc | < 5.66 |
| Softing | Secure Integration Server | <= 1.22 |
| Softing | Th Scope | >= 3.5 |
| Softing | Uagates | < 1.73 |
| Softing | Uatoolkit Embedded | < 1.40 |
References
- https://industrial.softing.com/Vendor Advisory
- https://industrial.softing.com/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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