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    CVE-2021-47799

    Visual Tools DVR VX16 version 4.2.28 contains a local privilege escalation vulnerability in its Sudo configuration that allows attackers to gain root access. Attackers can exploit the unsafe Sudo settings by using mount commands to bind a shell, enabling unauthorized system-level privileges.

    Published:Jan 15, 2026
    Last Modified:Jul 28, 2026
    EPS:Jan 15, 2026
    EPSS Score:0.0013
    CVSS Score:6.2

    Affected Products

    Vendor
    Visual-tools
    Product
    Dvr Vx16
    Vendor
    Visual-tools
    Product
    Dvr Vx16 Firmware

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-266 Incorrect Privilege Assignment

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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