CVE-2023-21083: Google Android

High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days.

In onNullBinding of CallScreeningServiceHelper.java, there is a possible way to record audio without showing a privacy indicator due to a permissions bypass. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-252762941

Affected products

• Google Android: version 11.0 only; version 12.0 only; version 12.1 only; version 13.0 only

Published 2023-04-19. Last modified 2026-06-17.