A Insufficient Verification of Data Authenticity (CWE-345) vulnerability exists in the Modicon M221, all versions, which could cause a change of IPv4 configuration (IP address, mask and gateway) when remotely connected to the device.Referenceshttp://www.securityfocus.com/bid/105970https://www.schneider-electric.com/en/download/document/SEVD-2018-270-01/
