CVE-2026-21659
Last modified
CVE-2026-21659 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Unauthenticated Remote Code Execution and Information Disclosure due to Local File Inclusion (LFI) vulnerability in Johnson Controls Frick Controls Quantum HD allow an unauthenticated attacker to execute arbitrary code on the affected device, leading to full system compromise. This issue affects Frick Controls Quantum HD: Frick Controls Quantum HD version 10.22 and prior.. EPSS estimates a 0.91% chance of exploitation in the next 30 days.
Description
Unauthenticated Remote Code Execution and Information Disclosure due to Local File Inclusion (LFI) vulnerability in Johnson Controls Frick Controls Quantum HD allow an unauthenticated attacker to execute arbitrary code on the affected device, leading to full system compromise. This issue affects Frick Controls Quantum HD: Frick Controls Quantum HD version 10.22 and prior.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Johnsoncontrols | Frick Controls Quantum Hd Firmware | <= 10.22 |
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-01Third Party Advisory, US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-21659?
How severe is CVE-2026-21659?
How do I fix CVE-2026-21659?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-21653Victor SSRF vulnerability in Johnson Controls CCure 9000 and…7.2
- CVE-2026-21654Improper Neutralization of Special Elements used in an OS Co…9.8
- CVE-2026-21655Deserialization of untrusted data vulnerability in Johnson C…8.7
- CVE-2026-21656Improper Control of Generation of Code ('Code Injection') vu…9.8
- CVE-2026-21657Improper Control of Generation of Code ('Code Injection') vu…9.8
- CVE-2026-21658Unauthenticated Remote Code Execution i.e Improper Control o…9.8
- CVE-2026-2166A security vulnerability has been detected in code-projects …9.8
- CVE-2026-21660Hardcoded Email Credentials Saved as Plaintext in Firmware (…9.8
- CVE-2026-21661Uncontrolled Search Path Element vulnerability in JohnsonCon…8.4
- CVE-2026-21662Unrestricted upload of file with dangerous type vulnerabilit…9.8
- CVE-2026-21663HackerOne community member Patrick Lang (7yr) has reported a…6.1
- CVE-2026-21664HackerOne community member Huynh Pham Thanh Luc (nigh7c0r3) …6.1
Are you affected by CVE-2026-21659?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST