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    CVE-2021-41840

    An issue was discovered in NvmExpressDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. There is an SMM callout that allows an attacker to access the System Management Mode and execute arbitrary code. This occurs because of Inclusion of Functionality from an Untrusted Control Sphere.

    Published:Feb 3, 2022
    Last Modified:Aug 11, 2026
    EPS:Feb 3, 2022
    EPSS Score:0.00301
    CVSS Score:8.2

    Affected Products

    Vendor
    Insyde
    Product
    Insydeh2o

    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