Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability in Xiaomi Xiaomi Router allows Command Injection.

Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability in Xiaomi Xiaomi Router allows Command Injection.

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Xiaomi Xiaomi Router allows Overflow Buffers.

Xiaomi routers have an external interface that can lead to command injection. The vulnerability is caused by lax filtering of responses from external interfaces. Attackers can exploit this vulnerability to gain access to the router by hijacking the ISP or upper-layer routing.

When Xiaomi router firmware is updated in 2020, there is an unauthenticated API that can reveal WIFI password vulnerability. This vulnerability is caused by the lack of access control policies on some API interfaces. Attackers can exploit this vulnerability to enter the background and execute background command injection.