CVE-2018-20787: Micode Xiaomi Perseus-P-OSS

Medium severity, CVSS 5.5. EPSS: 0.8% chance of exploitation in the next 30 days.

The ft5x46 touchscreen driver for custom Linux kernels on the Xiaomi perseus-p-oss MIX 3 device through 2018-11-26 has an integer overflow and OOPS because of missing checks of the size argument in tpdbg_write in drivers/input/touchscreen/ft5x46/ft5x46_ts.c. This is exploitable for a device crash via a syscall by a crafted application on a rooted device.

Affected products

• Micode Xiaomi Perseus-P-OSS: up to and including 2018-11-26

Published 2019-02-25. Last modified 2026-06-17.