CVE-2026-21659
Unauthenticated RCE via LFI in Frick Controls Quantum HD
Publication date: 2026-02-27
Last updated on: 2026-03-02
Assigner: Johnson Controls
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| johnsoncontrols | frick_controls_quantum_hd_firmware | to 10.22 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-22 | The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. |
| CWE-23 | The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is an unauthenticated Remote Code Execution (RCE) and Information Disclosure issue caused by a Local File Inclusion (LFI) flaw in Johnson Controls Frick Controls Quantum HD devices. It allows an attacker who does not need to be authenticated to execute arbitrary code on the affected device, potentially leading to full system compromise.
How can this vulnerability impact me? :
The impact of this vulnerability is severe because it allows an unauthenticated attacker to execute arbitrary code on the device. This can lead to full system compromise, meaning the attacker could take complete control of the affected device, potentially disrupting operations, stealing sensitive information, or using the device as a foothold for further attacks.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
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What immediate steps should I take to mitigate this vulnerability?
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