VULNERABILITY INTELLIGENCE

CVE-2021-42376

CVSS score5.5 MEDIUM
EPSS probability0.43%
CISA KEVNot currently listed
Published2021-11-15
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

A NULL pointer dereference in Busybox's hush applet leads to denial of service when processing a crafted shell command, due to missing validation after a \x03 delimiter character. This may be used for DoS under very rare conditions of filtered command input.

Weakness classification

  • reefs@jfrog.com: CWE-476
  • nvd@nist.gov: CWE-476

Primary references