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    CVE-2017-11786

    Skype for Business in Microsoft Lync 2013 SP1 and Skype for Business 2016 allows an attacker to steal an authentication hash that can be reused elsewhere, due to how Skype for Business handles authentication requests, aka "Skype for Business Elevation of Privilege Vulnerability."

    Published:Oct 13, 2017
    Last Modified:Apr 20, 2025
    EPS:Oct 13, 2017
    EPSS Score:0.11493
    CVSS Score:8.8

    Affected Products

    Vendor
    Microsoft
    Product
    Lync
    Vendor
    Microsoft
    Product
    Skype For Business

    Exploits

    No exploit reference

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    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