CVE-2021-1048: Android Kernel Use-After-Free Vulnerability

High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2022-05-23. EPSS: 1% chance of exploitation in the next 30 days.

In ep_loop_check_proc of eventpoll.c, there is a possible way to corrupt memory due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-204573007References: Upstream kernel

Affected products

• Google Android: affected versions not specified

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