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Vulnerability record · CVE-2026-21654 · published 27 February 2026

CVE-2026-21654: Johnsoncontrols frick controls quantum hd firmware os command injection vulnerability

Johnsoncontrols · Frick Controls Quantum Hd Firmware

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 permit unexpected actions, which could impact the security of the device before authentication occurs.This issue affects Frick Controls Quantum HD version 10.22 and prior.

8.8 CVSS 4.0 High EPSS 1.5% · top 26.2% CWE-78 · OS command injection
8.8CVSS 4.0 base score
1.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

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 permit unexpected actions, which could impact the security of the device before authentication occurs.This issue affects Frick Controls Quantum HD version 10.22 and prior.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-01 Third Party AdvisoryUS Government Resource
https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-21654), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.