CVE-2026-21661
Received Received - Intake
Uncontrolled Search Path Element in JohnsonControls AC2000

Publication date: 2026-05-06

Last updated on: 2026-05-06

Assigner: Johnson Controls

Description
Uncontrolled Search Path Element vulnerability in JohnsonControls AC2000 on Windows allows Leveraging/Manipulating Configuration File Search Paths. This issue affects AC2000: from 10.6 before release 10, from 11.0 before release 9, from 12 before release 3.
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Meta Information
Published
2026-05-06
Last Modified
2026-05-06
Generated
2026-06-16
AI Q&A
2026-05-06
EPSS Evaluated
2026-06-15
NVD
CVE-2026-21661
EUVD
EUVD-2026-27865
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
johnsoncontrols ac2000 From 10.6 (inc) to 3 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-427 The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors.
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Executive Summary

This vulnerability is an Uncontrolled Search Path Element issue in JohnsonControls AC2000 on Windows. It allows an attacker to leverage or manipulate the configuration file search paths used by the software.

Impact Analysis

Exploiting this vulnerability could allow an attacker with limited privileges to influence which configuration files the AC2000 software loads. This could lead to unauthorized changes in the system's behavior or security settings, potentially compromising the system's integrity or security.

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