Unauthenticated Remote Code Execution in Frick Controls Quantum HD by Johnson Controls
CVE-2026-21658

8.8HIGH

Key Information:

Vendor

Johnson Controls

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

What is CVE-2026-21658?

An unauthenticated remote code execution vulnerability exists in Johnson Controls' Frick Controls Quantum HD product. This flaw allows an attacker to inject arbitrary code, potentially leading to unauthorized system access and manipulation. The issue affects versions 10.22 and earlier, emphasizing the necessity for prompt updates and effective cybersecurity practices to mitigate potential threats.

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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:
8.8
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
High
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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