Johnson Controls, Inc. Frick Controls Quantum HD

View CSAF 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 Expand All + CVE-2026-21654 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. View CVE Details 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 Remediations Vendor fix The Frick Controls Quantum HD, versions 10.22 through 11, are legacy platforms that have reached end of support. Johnson Controls, Inc. recommends upgrading to the latest platform, Quantum HD Unity, version 12 or higher. The update procedure can be found here (https://frickcontrolsblob.file.core.windows.net/frickweb1/Quantum-HD-Unity/Quantum_HD_Unity_Software_Update_Procedure.pdf?sv=2018-03-28&si=frickweb1-174C1294FA7&sr=f&sig=us0dhk6IWmCvmDvBs02yJvC%2BjnzbxqZmb4QEpVVDkxY%3D). Mitigation After completing the upgrade to version 12, verify full compliance with the hardening guide and apply all recommended security configurations. Mitigation For more detailed mitigation instructions, please see Johnson Controls Product Security Advisory JCI-PSA-2026-05 at https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories. Relevant CWE: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') Metrics CVSS Version Base Score Base Severity Vector String

3.1 9.1 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

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. View CVE Details 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 Remediations Vendor fix The Frick Controls Quantum HD, versions 10.22 through 11, are legacy platforms that have reached end of support. Johnson Controls, Inc. recommends upgrading to the latest platform, Quantum HD Unity, version 12 or higher. The update procedure can be found here (https://frickcontrolsblob.file.core.windows.net/frickweb1/Quantum-HD-Unity/Quantum_HD_Unity_Software_Update_Procedure.pdf?sv=2018-03-28&si=frickweb1-174C1294FA7&sr=f&sig=us0dhk6IWmCvmDvBs02yJvC%2BjnzbxqZmb4QEpVVDkxY%3D). Mitigation After completing the upgrade to version 12, verify full compliance with the hardening guide and apply all recommended security configurations. Mitigation For more detailed mitigation instructions, please see Johnson Controls Product Security Advisory JCI-PSA-2026-05 at https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories. Relevant CWE: CWE-94 Improper Control of Generation of Code ('Code Injection') Metrics CVSS Version Base Score Base Severity Vector String

3.1 9.1 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

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. View CVE Details 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 Remediations Vendor fix The Frick Controls Quantum HD, versions 10.22 through 11, are legacy platforms that have reached end of support. Johnson Controls, Inc. recommends upgrading to the latest platform, Quantum HD Unity, version 12 or higher. The update procedure can be found here (https://frickcontrolsblob.file.core.windows.net/frickweb1/Quantum-HD-Unity/Quantum_HD_Unity_Software_Update_Procedure.pdf?sv=2018-03-28&si=frickweb1-174C1294FA7&sr=f&sig=us0dhk6IWmCvmDvBs02yJvC%2BjnzbxqZmb4QEpVVDkxY%3D). Mitigation After completing the upgrade to version 12, verify full compliance with the hardening guide and apply all recommended security configurations. Mitigation For more detailed mitigation instructions, please see Johnson Controls Product Security Advisory JCI-PSA-2026-05 at https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories. Relevant CWE: CWE-94 Improper Control of Generation of Code ('Code Injection') Metrics CVSS Version Base Score Base Severity Vector String

3.1 9.1 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

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. View CVE Details 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 Remediations Vendor fix The Frick Controls Quantum HD, versions 10.22 through 11, are legacy platforms that have reached end of support. Johnson Controls, Inc. recommends upgrading to the latest platform, Quantum HD Unity, version 12 or higher. The update procedure can be found here (https://frickcontrolsblob.file.core.windows.net/frickweb1/Quantum-HD-Unity/Quantum_HD_Unity_Software_Update_Procedure.pdf?sv=2018-03-28&si=frickweb1-174C1294FA7&sr=f&sig=us0dhk6IWmCvmDvBs02yJvC%2BjnzbxqZmb4QEpVVDkxY%3D). Mitigation After completing the upgrade to version 12, verify full compliance with the hardening guide and apply all recommended security configurations. Mitigation For more detailed mitigation instructions, please see Johnson Controls Product Security Advisory JCI-PSA-2026-05 at https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories. Relevant CWE: CWE-94 Improper Control of Generation of Code ('Code Injection') Metrics CVSS Version Base Score Base Severity Vector String

3.1 9.1 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

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. View CVE Details 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 Remediations Vendor fix The Frick Controls Quantum HD, versions 10.22 through 11, are legacy platforms that have reached end of support. Johnson Controls, Inc. recommends upgrading to the latest platform, Quantum HD Unity, version 12 or higher. The update procedure can be found here (https://frickcontrolsblob.file.core.windows.net/frickweb1/Quantum-HD-Unity/Quantum_HD_Unity_Software_Update_Procedure.pdf?sv=2018-03-28&si=frickweb1-174C1294FA7&sr=f&sig=us0dhk6IWmCvmDvBs02yJvC%2BjnzbxqZmb4QEpVVDkxY%3D). Mitigation After completing the upgrade to version 12, verify full compliance with the hardening guide and apply all recommended security configurations. Mitigation For more detailed mitigation instructions, please see Johnson Controls Product Security Advisory JCI-PSA-2026-05 at https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories. Relevant CWE: CWE-23 Relative Path Traversal Metrics CVSS Version Base Score Base Severity Vector String

3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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. View CVE Details 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 Remediations Vendor fix The Frick Controls Quantum HD, versions 10.22 through 11, are legacy platforms that have reached end of support. Johnson Controls, Inc. recommends upgrading to the latest platform, Quantum HD Unity, version 12 or higher. The update procedure can be found here (https://frickcontrolsblob.file.core.windows.net/frickweb1/Quantum-HD-Unity/Quantum_HD_Unity_Software_Update_Procedure.pdf?sv=2018-03-28&si=frickweb1-174C1294FA7&sr=f&sig=us0dhk6IWmCvmDvBs02yJvC%2BjnzbxqZmb4QEpVVDkxY%3D). Mitigation After completing the upgrade to version 12, verify full compliance with the hardening guide and apply all recommended security configurations. Mitigation For more detailed mitigation instructions, please see Johnson Controls Product Security Advisory JCI-PSA-2026-05 at https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories. Relevant CWE: CWE-256 Plaintext Storage of a Password Metrics CVSS Version Base Score Base Severity Vector String

3.1 6.2 MEDIUM CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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

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Source: CISA Alerts