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    CVE-2018-20818

    A buffer overflow vulnerability was discovered in the OpenPLC controller, in the OpenPLC_v2 and OpenPLC_v3 versions. It occurs in the modbus.cpp mapUnusedIO() function, which can cause a runtime crash of the PLC or possibly have unspecified other impact.

    Published:Apr 21, 2019
    Last Modified:Nov 21, 2024
    EPS:Apr 21, 2019
    EPSS Score:0.00459
    CVSS Score:9.8

    Affected Products

    Vendor
    Openplcproject
    Product
    Openplc V2
    Vendor
    Openplcproject
    Product
    Openplc V2 Firmware
    Vendor
    Openplcproject
    Product
    Openplc V3
    Vendor
    Openplcproject
    Product
    Openplc V3 Firmware

    Exploits

    No exploit reference

    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