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    CVE-2026-3091

    An uncontrolled search path element vulnerability in Synology Presto Client before 2.1.3-0672 allows local users to read or write arbitrary files and conduct denial-of-service during installation by placing a malicious DLL in advance in the same directory as the installer.

    Published:Feb 24, 2026
    Last Modified:Jun 2, 2026
    EPS:Feb 24, 2026
    EPSS Score:0.00006
    CVSS Score:6.7

    Affected Products

    Vendor
    Synology
    Product
    Presto Client
    Vendor
    Synology
    Product
    Synology Presto Client

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-427 Uncontrolled Search Path Element

    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