CVE-2026-19348 Shenzhen Aitemi M300 Wi-Fi Repeater protocol.csp sprintf command injection

A security flaw has been discovered in Shenzhen Aitemi M300 Wi-Fi Repeater r0-ea7890a. Impacted is the function sprintf of the file /protocol.csp?fname=net&opt=smacfilterconf&function=set&act=add&name=test&enable=1. Performing a manipulation of the argument enable/name/mac results in command...