CVE-2026-21656

Improper Control of Generation of Code ('Code Injection') vulnerability in Johnson Controls Frick Controls Quantum HD allows Code 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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-01	Third Party Advisory US Government Resource
https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:johnsoncontrols:frick_controls_quantum_hd_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:johnsoncontrols:frick_controls_quantum_hd:-:*:*:*:*:*:*:*

History

02 Mar 2026, 18:24

Type	Values Removed	Values Added
First Time		Johnsoncontrols frick Controls Quantum Hd Johnsoncontrols frick Controls Quantum Hd Firmware Johnsoncontrols
References	~~() https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-01 -~~	() https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-01 - Third Party Advisory, US Government Resource
References	~~() https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories -~~	() https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories - Vendor Advisory
CPE		cpe:2.3:h:johnsoncontrols:frick_controls_quantum_hd:-:::::::* cpe:2.3:o:johnsoncontrols:frick_controls_quantum_hd_firmware::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.8

27 Feb 2026, 09:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-27 09:16

Updated : 2026-03-02 18:24

NVD link : CVE-2026-21656

Mitre link : CVE-2026-21656

CVE.ORG link : CVE-2026-21656

JSON object : View

Products Affected

johnsoncontrols

frick_controls_quantum_hd
frick_controls_quantum_hd_firmware

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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