CVE-2021-3612

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

An out-of-bounds memory write flaw was found in the Linux kernel's joystick devices subsystem in versions before 5.9-rc1, in the way the user calls ioctl JSIOCSBTNMAP. This flaw allows a local user to crash the system or possibly escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-20CWE-787

Affected software

No affected versions have been published.

Timeline

Published
Jul 9, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-3612: High severity, CVSS 7.8 | Vulnix