CVE-2021-1020: Google Android

High severity, CVSS 7.3. EPSS: 0.1% chance of exploitation in the next 30 days.

In snoozeNotification of NotificationListenerService.java, there is a possible way to disable notification for an arbitrary user due to improper input validation. This could lead to local escalation of privilege with User execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-195111725

Affected products

• Google Android: version 12.0 only

Published 2021-12-15. Last modified 2026-06-17.