A security issue exists due to improper handling of malformed CIP packets during fuzzing. The controller enters a hard fault with solid red Fault LED and becomes unresponsive. Upon power cycle, the controller will enter recoverable fault where the MS LED and Fault LED become flashing red and reports fault code 0xF019. To recover, clear the fault.

A security issue exists due to improper handling of malformed CIP packets during fuzzing. The controller enters a hard fault with solid red Fault LED and becomes unresponsive. Upon power cycle, the controller will enter recoverable fault where the MS LED and Fault LED become flashing red and reports fault code 0xF019. To recover, clear the fault.

A security issue was found in the IPv6 stack in the Micro850 and Micro870 controllers. This issue occurs when the controllers received multiple malformed packets during fuzzing, causing a recoverable fault. A security issue exists due to improper handling of malformed CIP packets during fuzzing. The controller enters a hard fault with a solid red Fault LED and becomes unresponsive. Upon power cycling, the controller will enter a recoverable fault.