CVE-2021-1048

HIGH7.8

CISA KEV

Published 2021-12-15 · Updated 2026-06-17 · Source security@android.com

Summary

CVE-2021-1048 is a high-severity (CVSS 7.8) vulnerability in Android Kernel. CISA added it to the Known Exploited Vulnerabilities catalog on May 23, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by June 13, 2022. CISA does not currently list it as used in ransomware campaigns. Android has 17 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.

All 17 known-exploited Android vulnerabilities →

Description

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

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-416CWE-416

CISA Known-Exploited Vulnerability

Product: Android — Kernel

Name: Android Kernel Use-After-Free Vulnerability

Date added: 2022-05-23 · Due: 2022-06-13

Required action: Apply updates per vendor instructions.

References

View on NVD

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