Modicon M340 Security Notification (CVE-2022-0222)

This document details a high-severity vulnerability (CVE-2022-0222) in Schneider Electric's Modicon M340 controllers and Ethernet communication modules, which could allow a denial of service via SNMP requests. It provides affected product versions, remediation patches, and mitigations such as network segmentation, firewall rules, and VPN setup.