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CVE-2026-21656

Published: Feb 27, 2026

Modified: Mar 6, 2026

PUBLISHED

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.

Vendor	Product	Versions
Johnson Controls	Frick Controls Quantum HD	affected `Frick Controls Quantum HD version 10.22 and prior`

Weaknesses (CWE)

References

https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-01

https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories

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