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    CVE-2020-7562

    A CWE-125: Out-of-Bounds Read vulnerability exists in the Web Server on Modicon M340, Modicon Quantum and Modicon Premium Legacy offers and their Communication Modules (see notification for details) which could cause a segmentation fault or a buffer overflow when uploading a specially crafted file on the controller over FTP.

    Published:Nov 18, 2020
    Last Modified:May 29, 2026
    EPS:Nov 18, 2020
    EPSS Score:0.00516
    CVSS Score:6.3

    Affected Products

    Vendor
    Schneider-electric
    Product
    Modicon M340 Bmx Noc 0401
    Vendor
    Schneider-electric
    Product
    Modicon M340 Bmx Noc 0401 Firmware
    Vendor
    Schneider-electric
    Product
    Modicon M340 Bmx Noe 0100
    Vendor
    Schneider-electric
    Product
    Modicon M340 Bmx Noe 0100 Firmware
    Vendor
    Schneider-electric
    Product
    Modicon M340 Bmx Noe 0100h
    Vendor
    Schneider-electric
    Product
    Modicon M340 Bmx Noe 0100h Firmware
    Vendor
    Schneider-electric
    Product
    Modicon M340 Bmx Noe 0110
    Vendor
    Schneider-electric
    Product
    Modicon M340 Bmx Noe 0110 Firmware
    Vendor
    Schneider-electric
    Product
    Modicon M340 Bmx Noe 0110h
    Vendor
    Schneider-electric
    Product
    Modicon M340 Bmx Noe 0110h Firmware
    Vendor
    Schneider-electric
    Product
    Modicon M340 Bmx Nor 0200h
    Vendor
    Schneider-electric
    Product
    Modicon M340 Bmx Nor 0200h Firmware
    Vendor
    Schneider-electric
    Product
    Modicon M340 Bmx P34-2010
    Vendor
    Schneider-electric
    Product
    Modicon M340 Bmx P34-2010 Firmware
    Vendor
    Schneider-electric
    Product
    Modicon M340 Bmx P34-2030
    Vendor
    Schneider-electric
    Product
    Modicon M340 Bmx P34-2030 Firmware
    Vendor
    Schneider-electric
    Product
    Modicon Quantum 140cpu65150
    Vendor
    Schneider-electric
    Product
    Modicon Quantum 140cpu65150 Firmware
    Vendor
    Schneider-electric
    Product
    Modicon Quantum 140cpu65150c
    Vendor
    Schneider-electric
    Product
    Modicon Quantum 140cpu65150c Firmware
    Vendor
    Schneider-electric
    Product
    Modicon Quantum 140cpu65160
    Vendor
    Schneider-electric
    Product
    Modicon Quantum 140cpu65160 Firmware
    Vendor
    Schneider-electric
    Product
    Modicon Quantum 140cpu65160c
    Vendor
    Schneider-electric
    Product
    Modicon Quantum 140cpu65160c Firmware
    Vendor
    Schneider-electric
    Product
    Modicon Quantum 140noc78100
    Vendor
    Schneider-electric
    Product
    Modicon Quantum 140noc78100 Firmware
    Vendor
    Schneider-electric
    Product
    Modicon Quantum 140noe77101
    Vendor
    Schneider-electric
    Product
    Modicon Quantum 140noe77101 Firmware
    Vendor
    Schneider-electric
    Product
    Modicon Quantum 140noe77111
    Vendor
    Schneider-electric
    Product
    Modicon Quantum 140noe77111 Firmware
    Vendor
    Schneider-electric
    Product
    Modicon Tsxety4103
    Vendor
    Schneider-electric
    Product
    Modicon Tsxety4103 Firmware
    Vendor
    Schneider-electric
    Product
    Modicon Tsxety5103
    Vendor
    Schneider-electric
    Product
    Modicon Tsxety5103 Firmware
    Vendor
    Schneider-electric
    Product
    Modicon Tsxp574634
    Vendor
    Schneider-electric
    Product
    Modicon Tsxp574634 Firmware
    Vendor
    Schneider-electric
    Product
    Modicon Tsxp575634
    Vendor
    Schneider-electric
    Product
    Modicon Tsxp575634 Firmware
    Vendor
    Schneider-electric
    Product
    Modicon Tsxp576634
    Vendor
    Schneider-electric
    Product
    Modicon Tsxp576634 Firmware

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    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