AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2021-42377

CRITICAL · CVSS 9.8 EPSS 3.38% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-11-15 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
remote code execution code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-42377
Severity
CRITICAL
CVSS
9.8
EPSS
3.38%

Original NVD 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.