Yehonatan Kfir

**Name of the Vulnerable Software and Affected Versions** Modicon M221 versions prior to V1.6.2.0 **Description** The issue is related to an improper check for unusual or exceptional conditions, allowing unauthorized users to remotely reboot the device using crafted programming protocol frames. This can be exploited by a remote attacker to reboot the Modicon M221 device. **Recommendations** For versions prior to V1.6.2.0, update the firmware to version V1.6.2.0 or later to resolve the issue. As a temporary workaround, consider restricting remote access to the device until the update can be applied.