Vulnerabilities > Unified Automation > NET Based OPC UA Client Server SDK
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2021-05-20 | CVE-2021-27434 | Uncontrolled Recursion vulnerability in Unified-Automation .Net Based OPC UA Client/Server SDK 3.0.7 Products with Unified Automation .NET based OPC UA Client/Server SDK Bundle: Versions V3.0.7 and prior (.NET 4.5, 4.0, and 3.5 Framework versions only) are vulnerable to an uncontrolled recursion, which may allow an attacker to trigger a stack overflow. | 7.5 |