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Unrated severityNVD Advisory· Published Feb 27, 2026· Updated Mar 6, 2026

Johnson Controls -Frick Quantum HD- Unauthenticated Remote Code Execution

CVE-2026-21656

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

2
  • Johnson Controls/Quantum HDllm-fuzzy
    Range: <=10.22
  • Johnson Controls/Frick Controls Quantum HDv5
    Range: Frick Controls Quantum HD version 10.22 and prior

Patches

Vulnerability mechanics

References

2

News mentions

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