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    CVE-2026-27907

    Integer underflow (wrap or wraparound) in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.

    Published:Apr 14, 2026
    Last Modified:Apr 24, 2026
    EPS:Apr 14, 2026
    EPSS Score:0.00067
    CVSS Score:7.8

    Affected Products

    Vendor
    Microsoft
    Product
    Windows 11 22h3
    Vendor
    Microsoft
    Product
    Windows 11 23H2
    Vendor
    Microsoft
    Product
    Windows 11 23h2
    Vendor
    Microsoft
    Product
    Windows 11 24H2
    Vendor
    Microsoft
    Product
    Windows 11 24h2
    Vendor
    Microsoft
    Product
    Windows 11 25H2
    Vendor
    Microsoft
    Product
    Windows 11 25h2
    Vendor
    Microsoft
    Product
    Windows 11 26H1
    Vendor
    Microsoft
    Product
    Windows 11 26h1
    Vendor
    Microsoft
    Product
    Windows Server 2022, 23h2 Edition (server Core Installation)
    Vendor
    Microsoft
    Product
    Windows Server 2022 23h2
    Vendor
    Microsoft
    Product
    Windows Server 2025
    Vendor
    Microsoft
    Product
    Windows Server 2025 (server Core Installation)
    Vendor
    Microsoft
    Product
    Windows Server 23h2

    Exploits

    No exploit reference

    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