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    CVE-2020-28220

    A CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability exists in Modicon M258 Firmware (All versions prior to V5.0.4.11) and SoMachine/SoMachine Motion software (All versions), that could cause a buffer overflow when the length of a file transferred to the webserver is not verified.

    Published:Dec 11, 2020
    Last Modified:May 28, 2026
    EPS:Dec 11, 2020
    EPSS Score:0.00275
    CVSS Score:4.7

    Affected Products

    Vendor
    Schneider-electric
    Product
    Modicon M258
    Vendor
    Schneider-electric
    Product
    Modicon M258 Firmware
    Vendor
    Schneider-electric
    Product
    Somachine
    Vendor
    Schneider-electric
    Product
    Somachine Motion

    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