Vulnerability · Published Feb 27, 2026 · Assigned by jci
CVE-2026-21660Johnson Controls-Frick Quantum HD-Hardcoded Email Credentials Saved as Plaintext in Firmware
Medium 6.9
In plain English
A medium-severity security flaw in Frick Controls Quantum HD from Johnson Controls. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).
Official description
A 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 potential misuse or system compromise This issue affects Frick Controls Quantum HD version 10.22 and prior.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Johnson Controls | Frick Controls Quantum HD | Frick Controls Quantum HD version 10.22 and prior |
Weakness: CWE-256 · Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N