AUGUST 5, 2026
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Case File

CVE-2021-20991

CRITICAL · CVSS 9.8 EPSS 5.44% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-04-19 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references. Exploitation may require the attacker to be authenticated.

Public Exploit Signal

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

External Security References

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

CVE
CVE-2021-20991
Severity
CRITICAL
CVSS
9.8
EPSS
5.44%

Original NVD Description

In Fibaro Home Center 2 and Lite devices with firmware version 4.540 and older an authenticated user can run commands as root user using a command injection vulnerability.

Related CVEs

Other vulnerabilities affecting the same vendor(s)