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    CVE-2026-41090

    Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering over a network.

    Published:May 22, 2026
    Last Modified:May 27, 2026
    EPS:May 22, 2026
    EPSS Score:0.00048
    CVSS Score:9.3

    Affected Products

    Vendor
    Microsoft
    Product
    365 Copilot
    Vendor
    Microsoft
    Product
    365 Copilot IOS
    Vendor
    Microsoft
    Product
    365 Copilot Ios

    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