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    CVE-2026-21537

    Improper control of generation of code ('code injection') in Microsoft Defender for Linux allows an unauthorized attacker to execute code over an adjacent network.

    Published:Feb 10, 2026
    Last Modified:Apr 15, 2026
    EPS:Feb 10, 2026
    EPSS Score:0.00086
    CVSS Score:8.8

    Affected Products

    Vendor
    Microsoft
    Product
    Defender For Endpoint

    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