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    CVE-2017-1000209

    The Java WebSocket client nv-websocket-client does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL/TLS servers via an arbitrary valid certificate.

    Published:Nov 17, 2017
    Last Modified:Apr 20, 2025
    EPS:Nov 17, 2017
    EPSS Score:0.00121
    CVSS Score:5.9

    Affected Products

    Vendor
    Nv-websocket-client Project
    Product
    Nv-websocket-client

    Exploits

    https://github.com/dawetmaster/CVE-2017-1000209-nv-websocket-client-vulnerable

    Common Weakness Enumeration

    CWE-295 Improper Certificate Validation

    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