Remote Code Execution Vulnerability in Johnson Controls Frick Controls Quantum HD
CVE-2026-21659

8.7HIGH

Key Information:

Vendor

Johnson Controls

Status
Frick Controls Quantum Hd
Vendor
CVE Published:
27 February 2026

What is CVE-2026-21659?

An unauthenticated remote code execution and information disclosure vulnerability exists in Johnson Controls Frick Controls Quantum HD. This security flaw allows an attacker to execute arbitrary code on the device without authentication, potentially leading to complete system compromise. The vulnerability stems from a local file inclusion (LFI) weakness, compromising the integrity and confidentiality of the affected system. Organizations using Frick Controls Quantum HD version 10.22 and earlier should implement appropriate security measures to protect against this threat.

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Affected Version(s)

Frick Controls Quantum HD Frick Controls Quantum HD version 10.22 and prior

References

https://www.cisa.gov/news-events/ics-advisories/icsa-26-0...
https://www.johnsoncontrols.com/trust-center/cybersecurit...

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Noam Moshe of Claroty Team 82 Research group
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