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    CVE-2026-33825

    Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to elevate privileges locally.

    Published:Apr 14, 2026
    Last Modified:Apr 24, 2026
    EPS:Apr 14, 2026
    EPSS Score:0.03818
    CVSS Score:7.8

    CISA Notification

    Description

    Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to elevate privileges locally.

    Required Action:

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

    Notes:

    No extra notes provided.

    Due Date
    May 6, 2026
    128 days ago
    Alert Date
    Apr 22, 2026
    142 days ago

    Affected Products

    Vendor
    Microsoft
    Product
    Defender Antimalware Platform
    Vendor
    Microsoft
    Product
    Microsoft Defender
    Vendor
    Microsoft
    Product
    Windows Defender Antimalware Platform

    Exploits

    https://github.com/0xBlackash/CVE-2026-33825https://github.com/Bilal3755/Detecting_blue_hammer_vulnhttps://github.com/Joe1sn/CVE-2026-33825https://github.com/kaleth4/CVE-2026-33825https://github.com/Letlaka/redsun-bluehammer-undefend-detection-pack

    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