CVE-2021-1048

HIGH KEV

Android - Use After Free

Title source: llm

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

References (2)

[Patch, Vendor Advisory] https://source.android.com/security/bulletin/2021-11-01

[Third Party Advisory, US Government Resource] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1048

Scores

CVSS v3 7.8

EPSS 0.0125

EPSS Percentile 79.4%

Attack Vector LOCAL

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

Details

CISA KEV 2022-05-23

VulnCheck KEV 2021-11-06

InTheWild.io 2021-11-06

ENISA EUVD EUVD-2021-6515

CWE

CWE-416

Status published

Products (1)

google/android

Published Dec 15, 2021

KEV Added May 23, 2022

Tracked Since Feb 18, 2026