CVE-2026-21654CWE-78

Johnson Controls -Frick Quantum HD- Unauthenticated Remote Code Execution

High · published February 27, 2026

CVSS v4.0
8.8
EPSS
2%
Percentile
75.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.8 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.01567 · 75.1th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-02-27T08:38Z
EPSS history
Timeline
  • 27 FEB 08:38Z
    Johnson Controls -Frick Quantum HD- Unauthenticated Remote Code Execution
    cvelistv5