Modicon M241, M251, M258, LMC058 Security Notification

This document is a Schneider Electric security notification detailing a critical improper input validation vulnerability (CVE-2024-11737) in Modicon M241, M251, M258, and LMC058 programmable logic controllers. It provides affected firmware versions, remediation steps including firmware updates to v5.2.11.29 or v5.0.4.19, and mitigations such as network segmentation and firewall filtering to prevent denial of service and loss of confidentiality and integrity.