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The Coolpad 1851 Android device with a build fingerprint of Coolpad/android/android:8.1.0/O11019/1534834761:userdebug/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.
Use Coolpad vendor hub and Mega 5 Firmware product page to widen CVE-2019-15352 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2019-15388 and CVE-2019-15368 for nearby disclosures in the same product family.