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    CVE-2023-5768

    A vulnerability exists in the HCI IEC 60870-5-104 that affects the RTU500 series product versions listed below. Incomplete or wrong received APDU frame layout may cause blocking on link layer. Error reason was an endless blocking when reading incoming frames on link layer with wrong length information of APDU or delayed reception of data octets. Only communication link of affected HCI IEC 60870-5-104 is blocked. If attack sequence stops the communication to the previously attacked link gets normal again.

    Published:Dec 4, 2023
    Last Modified:Nov 21, 2024
    EPS:Dec 4, 2023
    EPSS Score:0.00115
    CVSS Score:5.9

    Affected Products

    Vendor
    Hitachienergy
    Product
    Rtu520
    Vendor
    Hitachienergy
    Product
    Rtu520 Firmware
    Vendor
    Hitachienergy
    Product
    Rtu530
    Vendor
    Hitachienergy
    Product
    Rtu530 Firmware
    Vendor
    Hitachienergy
    Product
    Rtu540
    Vendor
    Hitachienergy
    Product
    Rtu540 Firmware
    Vendor
    Hitachienergy
    Product
    Rtu560
    Vendor
    Hitachienergy
    Product
    Rtu560 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