CVE-2021-0320: Google Android

Medium severity, CVSS 4.7. EPSS: 0.1% chance of exploitation in the next 30 days.

In is_device_locked and set_device_locked of keystore_keymaster_enforcement.h, there is a possible bypass of lockscreen requirements for keyguard bound keys due to a race condition. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-10, Android-11; Android ID: A-169933423.

Affected products

• Google Android: version 10.0 only; version 11.0 only

Published 2021-01-11. Last modified 2026-06-17.