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    CVE-2021-47961

    A plaintext storage of a password vulnerability in Synology SSL VPN Client before 1.4.5-0684 allows remote attackers to access or influence the user's PIN code due to insecure storage. This may lead to unauthorized VPN configuration and potential interception of subsequent VPN traffic when combined with user interaction.

    Published:Apr 10, 2026
    Last Modified:May 29, 2026
    EPS:Apr 10, 2026
    EPSS Score:0.00048
    CVSS Score:8.1

    Affected Products

    Vendor
    Synology
    Product
    Ssl Vpn Client

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-256 Plaintext Storage of a Password

    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