n3c

The Coolpad N3C Android device with a build fingerprint of Coolpad/N3C/N3C:8.1.0/O11019/1538236809:user/release-keys contains a pre-installed app with a package name of com.mediatek.wfo.impl app (versionCode=27, versionName=8.1.0) that allows any app co-located on the device to modify a system property through an exported interface without proper authorization.