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    CVE-2025-66593

    An origin validation error vulnerability in Synology Assistant before 7.0.6-50085 allows local users to write arbitrary files with restricted content and conduct denial-of-service during installation.

    Published:May 27, 2026
    Last Modified:Jun 2, 2026
    EPS:May 27, 2026
    EPSS Score:0.00004
    CVSS Score:6.1

    Affected Products

    Vendor
    Synology
    Product
    Assistant

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-346 Origin Validation Error

    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