Google’s Android November 2021 security updates addressed 18 vulnerabilities in the framework and system components and 18 issues in the kernel and vendor components.
One of these issues, tracked as CVE-2021-1048, is a use-after-free (UAF) vulnerability in the kernel that could be exploited for privilege escalation. Google is aware that this vulnerability is under limited and targeted exploitation.
The company did not provide technical details about the vulnerability.
The security updates address a total of five critical vulnerabilities, the most severe ones are two remote code execution (RCE) issues tracked as CVE-2021-0918 and CVE-2021-0930 that reside in the System component.