Google published the Android Security Bulletin for November 2021 with patches for multiple vulnerabilities, including five that are rated critical.

Android November 2021 security updates address 18 vulnerabilities in the framework and system components, and 18 more flaws in the kernel and vendor components.

The most severe of these issues is a critical security vulnerability in the System component that could enable a remote attacker to execute arbitrary code within the context of a privileged process.

Source: android.com