CVE-2026-21657

Johnson Controls -Frick Quantum HD- Unauthenticated Remote Code Execution

Published: Feb 27, 2026Updated: Mar 2, 2026 Sources: CVE List NVD csafCWE-94

9.8CRITICAL

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-94

Affected Products

Johnson Controls

commercial·USaka jci, exacqvision, frick controls quantum hd, metasys

Frick Controls Quantum HDOn-prem

ICS / OT / IoT / building-automation

johnsoncontrols

commercial·USaka metasys open application server, metasys extended application and data server, metasys application and data server

frick controls quantum hd firmwareEmbeddedFirmware

ICS / OT / IoT / building-automation

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Execution

Initial Access

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References

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

cisa.gov

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

johnsoncontrols.com

https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-057-01.json

raw.githubusercontent.com

and 25 more references View all →

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