CVE-2026-21654

HIGH EPSS 71.2%
Published Feb 27, 20264mo ago · Modified Jun 17, 20261w ago
8.8 CVSS 4.0
High
Find Similar
Published Feb 27, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
8.8
Exploitability
—
Impact
—
Vector string
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:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
71.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-78 OS Command Injection Injection

Affected Products 2

VendorProductVersionRange
johnsoncontrolsfrick_controls_quantum_hd_firmware* ≤10.22
johnsoncontrolsfrick_controls_quantum_hd*any

References 2

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.