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    CVE-2026-21661

    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.

    Published:May 6, 2026
    Last Modified:Aug 24, 2026
    EPS:May 6, 2026
    EPSS Score:0.00108
    CVSS Score:8.4

    Affected Products

    Vendor
    Johnson Controls
    Product
    Ac2000
    Vendor
    Johnsoncontrols
    Product
    Ac2000

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-427 Uncontrolled Search Path Element

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High