The Xiaomi Mi Mix 2S Android device with a build fingerprint of Xiaomi/polaris/polaris:8.0.0/OPR1.170623.032/V9.5.19.0.ODGMIFA:user/release-keys contains a pre-installed app with a package name of com.huaqin.factory app (versionCode=1, versionName=A2060_201801032053) that allows unauthorized wireless settings modification via a confused deputy attack. This capability can be accessed by any app co-located on the device.