A CWE-20: Improper Input Validation vulnerability exists that could cause a Denial of Service when a crafted packet is sent to the controller over network port 1105/TCP. Affected Product: Modicon M218 Logic Controller (V5.1.0.6 and prior)

A CWE-20: Improper Input Validation vulnerability exists that could cause a Denial of Service when a crafted packet is sent to the controller over network port 1105/TCP. Affected Product: Modicon M218 Logic Controller (V5.1.0.6 and prior)

Schneider Electric is aware of a vulnerability in its Modicon M218 Logic Controller product. The Modicon M218 Logic Controller is a programmable controller providing an optimized solution to repetitive machines based on high speed counting and simple positioning features. Failure to apply the remediation provided below may risk denial of service of the controller, when specifically crafted packets are sent to the Modicon M218 controller.