CVE-2026-21656

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Feb 27, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2026-21656: Critical severity, CVSS 9.8 | Vulnix