cve.bz

CVE-2021-42377

9.8 criticalEPSS 3.6%

Critical (9.8). EPSS 3.6% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
3.6% chance of exploitation in the next 30 days; higher than 89% of CVEs (scores of 2026-10-31)
CWEs
CWE-763, CWE-590
Published
Modified
Record from
the NVD, synced

Affected

References

Check your stackJSON