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    CVE-2022-41648

    The HEIDENHAIN Controller TNC 640 NC software Version 340590 07 SP5, is vulnerable to improper authentication in its DNC communication for CNC machines. Authentication is not enabled by default for DNC communication. This vulnerability may allow an attacker to deny service on the production line, steal sensitive data from the production line, and alter any products created by the production line. Note: CNC machines running the TNC 640 controller require DNC to be enabled for DNC communication to be present.

    Published:Oct 28, 2022
    Last Modified:Oct 13, 2025
    EPS:Oct 28, 2022
    EPSS Score:0.00068
    CVSS Score:9.8

    Affected Products

    Vendor
    Heidenhain
    Product
    Heros
    Vendor
    Heidenhain
    Product
    Tnc 640
    Vendor
    Heidenhain
    Product
    Tnc 640 Programming Station

    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