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    CVE-2020-7559

    A CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability exists in PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) that could cause a crash of the PLC simulator present in EcoStruxureª Control Expert software when receiving a specially crafted request over Modbus.

    Published:Nov 19, 2020
    Last Modified:Nov 21, 2024
    EPS:Nov 19, 2020
    EPSS Score:0.00505
    CVSS Score:7.5

    Affected Products

    Vendor
    Schneider-electric
    Product
    Ecostruxure Control Expert

    Exploits

    https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1140https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1140

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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