CVE-2011-4871: Opcsystems Opcsystems.net

Medium severity, CVSS 5.0. EPSS: 3.1% chance of exploitation in the next 30 days.

Open Automation Software OPC Systems.NET before 5.0 allows remote attackers to cause a denial of service via a malformed .NET RPC packet on TCP port 58723.

Affected products

• Opcsystems Opcsystems.net: up to and including 4.0

Published 2012-04-18. Last modified 2026-06-16.