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    CVE-2020-24685

    An unauthenticated specially crafted packet sent by an attacker over the network will cause a denial-of-service (DoS) vulnerability. Vulnerability allows attacker to stop the PLC. After stopping (ERR LED flashing red), physical access to the PLC is required in order to restart the application. This issue affects: ABB AC500 V2 products with onboard Ethernet version 2.8.4 and prior versions.

    Published:Feb 9, 2021
    Last Modified:Nov 21, 2024
    EPS:Feb 9, 2021
    EPSS Score:0.00804
    CVSS Score:8.6

    Affected Products

    Vendor
    Abb
    Product
    Ac500 Cpu Firmware
    Vendor
    Abb
    Product
    Pm573-eth
    Vendor
    Abb
    Product
    Pm583-eth

    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