VULNERABILITY INTELLIGENCE

CVE-2021-43033

CVSS score9.8 CRITICAL
EPSS probability6.19%
CISA KEVNot currently listed
Published2021-12-06
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • nvd@nist.gov: CWE-78

Primary references