CVE-2021-42375

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

An incorrect handling of a special element in Busybox's ash applet leads to denial of service when processing a crafted shell command, due to the shell mistaking specific characters for reserved characters. This may be used for DoS under rare conditions of filtered command input.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-159

Affected software

VendorProductVersions
busyboxbusybox>= unspecified, < 1.34.0

References

Timeline

Published
Nov 15, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

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CVE-2021-42375: Medium severity, CVSS 5.5 | Vulnix