CVE-2021-0688: Google Android

High severity, CVSS 7.0. EPSS: 0.2% chance of exploitation in the next 30 days.

In lockNow of PhoneWindowManager.java, there is a possible lock screen bypass due to a race condition. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-8.1 Android-9Android ID: A-161149543

Affected products

• Google Android: version 8.1 only; version 9.0 only; version 10.0 only; version 11.0 only

Published 2021-10-06. Last modified 2026-06-17.