CVEvulnerability

CVE-2021-1048

7.8 HIGH Known exploited Published 2021-12-15 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Android Kernel Use-After-Free Vulnerability — Android Kernel

Android kernel contains a use-after-free vulnerability that allows for privilege escalation.

Added to KEV
2022-05-23
Remediation due
2022-06-13
Ransomware use
Unknown
Required action
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2021-1048
Status
Analyzed
Published
2021-12-15
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-416

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

Affected configurations

• google android

Related

Weakness · CWE (1)

References