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    CVE-2026-15688

    Incorrect Implementation of Authentication Algorithm Vulnerability in Mitsubishi Electric GX Works3 and Motion Control Setting allows a local attacker to successfully authenticate even with an invalid block password by executing the affected product and modifying part of the executable module in memory, and thereby may be able to view, tamper with, destroy, or delete control programs.

    Published:Sep 17, 2026
    Last Modified:Oct 9, 2026
    EPS:Sep 17, 2026
    EPSS Score:0.00121
    CVSS Score:9.2

    Affected Products

    Vendor
    Mitsubishielectric
    Product
    Gx Works3
    Vendor
    Mitsubishielectric
    Product
    Motion Control Setting

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-90 Reflection Attack in Authentication Protocol

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    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