Description
An attacker-controlled pointer free in Busybox's hush applet leads to denial of service and possible code execution when processing a crafted shell command, due to the shell mishandling the &&& string. This may be used for remote code execution under rare conditions of filtered command input.
References (5)
Scores
CVSS v3
9.8
EPSS
0.0285
EPSS Percentile
86.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-590
CWE-763
Status
published
Products (14)
busybox/busybox
1.33.0
busybox/busybox
1.33.1
fedoraproject/fedora
33
fedoraproject/fedora
34
netapp/cloud_backup
netapp/h300e_firmware
netapp/h300s_firmware
netapp/h410s_firmware
netapp/h500e_firmware
netapp/h500s_firmware
... and 4 more
Published
Nov 15, 2021
Tracked Since
Feb 18, 2026