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Case File

CVE-2021-43033

CRITICAL · CVSS 9.8 EPSS 5.99% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-12-06 · 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-2021-43033
Severity
CRITICAL
CVSS
9.8
EPSS
5.99%

Original NVD Description

An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. Multiple functions in the bpserverd daemon were vulnerable to arbitrary remote code execution as root. The vulnerability was caused by untrusted input (received by the server) being passed to system calls.