CVE-2021-1048
HIGH KEVAndroid - Use-After-Free in eventpoll.c ep_loop_check_proc
Title source: llmExploitation Summary
CVE-2021-1048 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added May 23, 2022.
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)
Core 2
Core References
Patch, Vendor Advisory x_refsource_misc
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
0.0091
EPSS Percentile
76.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
active
Automatable
no
Technical Impact
total
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