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    CVE-2025-66174

    There is an improper authentication vulnerability in some Hikvision DVR products. Due to the improper implementation of authentication for the serial port, an attacker with physical access could exploit this vulnerability by connecting to the affected products and run a series of commands.

    Published:Dec 19, 2025
    Last Modified:Dec 23, 2025
    EPS:Dec 19, 2025
    EPSS Score:0.00069
    CVSS Score:6.5

    Affected Products

    Vendor
    Hikvision
    Product
    Ds-7104hghi-f1
    Vendor
    Hikvision
    Product
    Ds-7104hghi-f1 Firmware
    Vendor
    Hikvision
    Product
    Ds-7204hghi-f1
    Vendor
    Hikvision
    Product
    Ds-7204hghi-f1 Firmware

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-287 Improper Authentication

    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