CVE-2026-21657
Received Received - Intake

Code Injection in Johnson Controls Frick Quantum HD Pre-Auth

Publication date: 2026-02-27

Last updated on: 2026-03-02

Assigner: Johnson Controls

Description
Improper Control of Generation of Code ('Code Injection') vulnerability in Johnson Controls Frick Controls Quantum HD allows Code 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.

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Meta Information

Published
2026-02-27
Last Modified
2026-03-02
Generated
2026-07-06
AI Q&A
2026-02-27
EPSS Evaluated
2026-07-05
NVD
CVE-2026-21657
EUVD
EUVD-2026-9012

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
johnsoncontrols frick_controls_quantum_hd_firmware to 10.22 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-94 The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

Attack-Flow Graph

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Executive Summary

This vulnerability is a Code Injection issue in Johnson Controls Frick Controls Quantum HD devices. It arises due to insufficient validation of input parameters, which may allow an attacker to inject and execute unexpected code on the device.

The vulnerability affects versions 10.22 and earlier of the Frick Controls Quantum HD and can be exploited before any authentication occurs.

Impact Analysis

This vulnerability can impact you by allowing an attacker to execute unauthorized code on the affected device without needing to authenticate first.

Such unauthorized actions could compromise the security and integrity of the device, potentially leading to further exploitation or disruption of its normal operations.

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