CVE-2021-0321: Google Android

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In enforceDumpPermissionForPackage of ActivityManagerService.java, there is a possible way to determine if a package is installed due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-11; Android ID: A-166667403.

Affected products

• Google Android: version 11.0 only

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