CVE-2026-21654CRITICAL 9.8EPSS p71.0%

CVE-2026-21654CVE-2026-21654

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.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS1.51% probability of exploitation · percentile 71.0% · 2026-06-18T12:00:27Z
Published2026-02-27
Last modified2026-03-02

Underlying weaknesses· 1

CWE-78

References

  1. https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-01
  2. https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories

1

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Special Elements used in an OS Command ('OS Command Injection')cwe-780%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.