CVE-2021-40871
High
Description
An issue was discovered in Softing Industrial Automation OPC UA C++ SDK before 5.66. Remote attackers to cause a denial of service (DoS) by sending crafted messages to a OPC/UA client. The client process may crash unexpectedly because of a wrong type cast, and must be restarted.
SeverityHigh
CVSS7.5
Exploit probability71. percentile1.3%
ProductSofting Datafeed Opc Suite
PublishedNov 10, 2021
First seenNov 10, 2021
How to fix
Update
- softing datafeed_opc_suite5.18 or later
- softing opc5.66 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| softing datafeed_opc_suite | v < 5.18 | 5.18 |
| softing opc | v < 5.66 | 5.66 |
| softing secure_integration_server | v ≤ 1.22 | — |
| softing th_scope | 3.5 ≤ v | — |
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