CVE-2026-21654

Johnson Controls -Frick Quantum HD- Unauthenticated Remote Code Execution

Published Feb 27, 2026 CVSS 4.0 · 8.8 High EPSS 1.7% KEV · Not listed
Description
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.

Remediation

Vendor Solution

a. Quantum HD version 10.22 through Version 11 is a previous product platform and is End Of support platform and should be upgraded to new platform with Quantum HD Unity version 12 and above. The update procedure can be found here:  https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Johnsoncontrols frick Controls Quantum Hd Firmware
CPEs cpe:2.3:h:johnsoncontrols:frick_controls_quantum_hd:-:*:*:*:*:*:*:*
cpe:2.3:o:johnsoncontrols:frick_controls_quantum_hd_firmware:*:*:*:*:*:*:*:*
Vendors & Products Johnsoncontrols frick Controls Quantum Hd Firmware
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
First Time appeared Johnsoncontrols
Johnsoncontrols frick Controls Quantum Hd
Vendors & Products Johnsoncontrols
Johnsoncontrols frick Controls Quantum Hd
Type Values Removed Values Added
Description 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.This issue affects Frick Controls Quantum HD version 10.22 and prior. 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.
Type Values Removed Values Added
Description 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.This issue affects Frick Controls Quantum HD version 10.22 and prior.
Title Johnson Controls -Frick Quantum HD- Unauthenticated Remote Code Execution
Weaknesses CWE-78
References
Metrics cvssV4_0

{'score': 8.8, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
jci
Published
Updated
Mar 6, 2026, 6:44 PM
Reserved
Jan 2, 2026, 1:23 PM
Status
Analyzed
Published
Feb 27, 2026, 9:16 AM
Modified
Jun 17, 2026, 10:18 AM