CVE-2022-1261: Honeywell Matrikon Opc Server

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

Matrikon, a subsidary of Honeywell Matrikon OPC Server (all versions) is vulnerable to a condition where a low privileged user allowed to connect to the OPC server to use the functions of the IPersisFile to execute operating system processes with system-level privileges.

Affected products

• Honeywell Matrikon Opc Server: any version

Published 2022-05-26. Last modified 2026-06-17.