Vulnerability Details CVE-2026-21659
Unauthenticated Remote Code Execution and Information Disclosure due to Local File Inclusion (LFI) vulnerability in Johnson Controls Frick Controls Quantum HD allow an unauthenticated attacker to
execute arbitrary code on the affected device, leading to full system compromise.
This issue affects Frick Controls Quantum HD: Frick Controls Quantum HD version 10.22 and prior.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 54.1%
CVSS Severity
CVSS v3 Score 9.8
References
Products affected by CVE-2026-21659
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cpe:2.3:h:johnsoncontrols:frick_controls_quantum_hd:-
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cpe:2.3:o:johnsoncontrols:frick_controls_quantum_hd_firmware:*