CVE-2026-21654 HIGH

CVE-2026-21654: Johnson Controls -Frick Quantum HD- Unauthenticated Remote Code Execution

Vendor Johnson Controls
Product Frick Controls Quantum HD
Weakness CWE-78
Published February 27, 2026
Last update March 6, 2026
View on NVD All CVEs

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Johnson Controls Frick Controls Quantum HD allows OS Command Injection. Insufficient validation of input in certain parameters may permit unexpected actions, which could impact the security of the device before authentication occurs.This issue affects Frick Controls Quantum HD version 10.22 and prior.

Key dates

02Disclosure timeline

February 27, 2026 CVE published
March 6, 2026 Record updated