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CVE-2026-21661

AC2000 Uncontrolled Search Path Element

An 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.

CVSS 4.0 · 8.4 High EPSS < 1% KEV · Not listed
Vendors
Johnson Controls Johnsoncontrols
Products
Ac2000 Ac2000
CVE-2021-27663

CEM Systems AC2000

A vulnerability in versions 10.1 through 10.5 of Johnson Controls CEM Systems AC2000 allows a remote attacker to access to the system without adequate authorization. This issue affects: Johnson Controls CEM Systems AC2000 10.1; 10.2; 10.3; 10.4; 10.5.

CVSS 3.1 · 8.2 High EPSS 1.7% KEV · Not listed
Vendors
Johnsoncontrols
Products
Ac2000 Ac2000 Firmware