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    CVE-2021-40450

    Win32k Elevation of Privilege Vulnerability

    Published:Oct 13, 2021
    Last Modified:Oct 30, 2025
    EPS:Oct 13, 2021
    EPSS Score:0.10415
    CVSS Score:7.8

    CISA Notification

    Description

    Win32k Elevation of Privilege Vulnerability

    Required Action:

    Apply updates per vendor instructions.

    Notes:

    No extra notes provided.

    Due Date
    May 16, 2022
    1579 days ago
    Alert Date
    Apr 25, 2022
    1600 days ago

    Affected Products

    Vendor
    Microsoft
    Product
    Windows 10 1809
    Vendor
    Microsoft
    Product
    Windows 10 1909
    Vendor
    Microsoft
    Product
    Windows 10 2004
    Vendor
    Microsoft
    Product
    Windows 10 20H2
    Vendor
    Microsoft
    Product
    Windows 10 20h2
    Vendor
    Microsoft
    Product
    Windows 10 21H1
    Vendor
    Microsoft
    Product
    Windows 10 21h1
    Vendor
    Microsoft
    Product
    Windows 11 21H2
    Vendor
    Microsoft
    Product
    Windows 11 21h2
    Vendor
    Microsoft
    Product
    Windows Server 2004
    Vendor
    Microsoft
    Product
    Windows Server 2019
    Vendor
    Microsoft
    Product
    Windows Server 2022
    Vendor
    Microsoft
    Product
    Windows Server 20H2
    Vendor
    Microsoft
    Product
    Windows Server 20h2

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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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