CVE-2021-3753

MediumCVSS 4.7/10Last modified Jun 17, 2026

Description

A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the Linux kernel, which may cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl (KDSETMDE). The highest threat from this vulnerability is to data confidentiality.

Metrics

CVSS 3.1 4.7/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Feb 16, 2022
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-3753: Medium severity, CVSS 4.7 | Vulnix