CVE-2017-12069: Ocpfoundation Local Discovery Server

High severity, CVSS 8.2. EPSS: 2.9% chance of exploitation in the next 30 days.

An XXE vulnerability has been identified in OPC Foundation UA .NET Sample Code before 2017-03-21 and Local Discovery Server (LDS) before 1.03.367. Among the affected products are Siemens SIMATIC PCS7 (All versions V8.1 and earlier), SIMATIC WinCC (All versions < V7.4 SP1), SIMATIC WinCC Runtime Professional (All versions < V14 SP1), SIMATIC NET PC Software, and SIMATIC IT Production Suite. By sending specially crafted packets to the OPC Discovery Server at port 4840/tcp, an attacker might cause the system to access various resources chosen by the attacker.

Affected products

• Ocpfoundation Local Discovery Server: up to and including 1.01.333.0
• Ocpfoundation Ua .net: up to and including 2017-03-21
• Siemens SIMATIC PCS7: up to and including 8.1
• Siemens Wincc: up to and including 7.4

Published 2017-08-30. Last modified 2026-06-17.