Vulnerability in Johnson Controls Frick Quantum Hd
CVE-2026-21660
Hardcoded Email Credentials Saved as Plaintext in Firmware (CWE-256: Plaintext Storage of a Password) vulnerability in Frick Controls Quantum HD version 10.22 and prior lead to unauthorized access, exposure of sensitive information, and po…
EPSS: 0.002 (13.7th 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-2026-21660?
- CVE-2026-21660 is a critical-severity vulnerability in Johnson Controls Frick Quantum Hd, classified under Plaintext Storage of a Password. CVSS score: 9.8/10. Published 2026-02-27.
- How severe is CVE-2026-21660?
- Critical severity. CVSS v3 base score is 9.8 out of 10.