CVE-2007-4473: Gesytec Easylon Opc Server

High severity, CVSS 10.0. EPSS: 5.7% chance of exploitation in the next 30 days.

Gesytec Easylon OPC Server before 2.3.44 does not properly validate server handles, which allows remote attackers to execute arbitrary code or cause a denial of service via unspecified network traffic to the OLE for Process Control (OPC) interface, probably related to free operations on arbitrary memory addresses through certain Remove functions, and read and write operations on arbitrary memory addresses through certain Set, Read, and Write functions.

Affected products

• Gesytec Easylon Opc Server: version 2.30.32 only

Published 2007-12-17. Last modified 2026-06-16.