RCE in Johnson Controls Frick Quantum Hd
CVE-2026-21654
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Johnson Controls Frick Controls Quantum HD allows OS Command Injection. Insufficient validation of input in certain parameters may…
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.015 (71.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Johnson Controls Frick Quantum Hd — versions Frick Controls Quantum HD version 10.22 and prior
- Johnsoncontrols Frick_controls_quantum_hd
- Johnsoncontrols Frick_controls_quantum_hd_firmware
Weakness classification (CWE)
References
- productsecurity@jci.com (US Government Resource, Third Party Advisory)
- productsecurity@jci.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-21654?
- CVE-2026-21654 is a critical-severity vulnerability in Johnson Controls Frick Quantum Hd, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-02-27.
- How severe is CVE-2026-21654?
- Critical severity. CVSS v3 base score is 9.8 out of 10.