Summary
Successful exploitation of these vulnerabilities can lead to pre-authentication remote code execution, information leak or denial of service.
The following versions of Johnson Controls, Inc. Frick Controls Quantum HD are affected:
- Frick Controls Quantum HD <=10.22 (CVE-2026-21654, CVE-2026-21656, CVE-2026-21657, CVE-2026-21658, CVE-2026-21659, CVE-2026-21660)
| CVSS | Vendor | Equipment | Vulnerabilities |
|---|---|---|---|
| v3 9.1 | Johnson Controls, Inc. | Johnson Controls, Inc. Frick Controls Quantum HD | Improper Neutralization of Special Elements used in an OS Command (‘OS Command Injection’), Improper Control of Generation of Code (‘Code Injection’), Relative Path Traversal, Plaintext Storage of a Password |
Background
- Critical Infrastructure Sectors: Food and Agriculture
- Countries/Areas Deployed: Worldwide
- Company Headquarters Location: Ireland
Vulnerabilities
CVE-2026-21656
The Frick Controls Quantum HD is vulnerable due to insufficient validation of input in certain parameters that may permit unexpected actions, which could impact the security of the device before authentication occurs.
Affected Products
Johnson Controls, Inc. Frick Controls Quantum HD
Vendor:
Johnson Controls, Inc.
Product Version:
Johnson Controls, Inc. Frick Controls Quantum HD: <=10.22
Product Status:
known_affected
Relevant CWE: CWE-94 Improper Control of Generation of Code (‘Code Injection’)
Metrics
CVE-2026-21657
The Frick Controls Quantum HD is vulnerable due to insufficient validation of input in certain parameters that may permit unexpected actions, which could impact the security of the device before authentication occurs.
Affected Products
Johnson Controls, Inc. Frick Controls Quantum HD
Vendor:
Johnson Controls, Inc.
Product Version:
Johnson Controls, Inc. Frick Controls Quantum HD: <=10.22
Product Status:
known_affected
Relevant CWE: CWE-94 Improper Control of Generation of Code (‘Code Injection’)
Metrics
CVE-2026-21658
The Frick Controls Quantum HD is vulnerable due to insufficient validation of input in certain parameters that may permit unexpected actions, which could impact the security of the device before authentication occurs.
Affected Products
Johnson Controls, Inc. Frick Controls Quantum HD
Vendor:
Johnson Controls, Inc.
Product Version:
Johnson Controls, Inc. Frick Controls Quantum HD: <=10.22
Product Status:
known_affected
Relevant CWE: CWE-94 Improper Control of Generation of Code (‘Code Injection’)
Metrics
CVE-2026-21659
The Frick Controls Quantum HD contains a vulnerability that allows an unauthenticated attacker to execute arbitrary code on the affected device, leading to full system compromise.
Affected Products
Johnson Controls, Inc. Frick Controls Quantum HD
Vendor:
Johnson Controls, Inc.
Product Version:
Johnson Controls, Inc. Frick Controls Quantum HD: <=10.22
Product Status:
known_affected
Relevant CWE: CWE-23 Relative Path Traversal
Metrics
CVE-2026-21660
Hardcoded credentials in the Frick Controls Quantum HD create a vulnerability that leads to unauthorized access, exposure of sensitive information, and potential misuse or system compromise.
Affected Products
Johnson Controls, Inc. Frick Controls Quantum HD
Vendor:
Johnson Controls, Inc.
Product Version:
Johnson Controls, Inc. Frick Controls Quantum HD: <=10.22
Product Status:
known_affected
Relevant CWE: CWE-256 Plaintext Storage of a Password
Metrics
Acknowledgments
- Noam Moshe of Claroty Research Team 82 reported these vulnerabilities to CISA
Legal Notice and Terms of Use
This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy).
Recommended Practices
CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities, such as:
Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
Locate control system networks and remote devices behind firewalls and isolating them from business networks.
When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.
Revision History
- Initial Release Date: 2026-02-26
| Date | Revision | Summary |
|---|---|---|
| 2026-02-26 | 1 | Initial Publication |