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    CVE-2023-22616

    An issue was discovered in Insyde InsydeH2O with kernel 5.2 through 5.5. The Save State register is not checked before use. The IhisiSmm driver does not check the value of a save state register before use. Due to insufficient input validation, an attacker can corrupt SMRAM.

    Published:Apr 12, 2023
    Last Modified:Feb 10, 2025
    EPS:Apr 12, 2023
    EPSS Score:0.0006
    CVSS Score:7.8

    Affected Products

    Vendor
    Insyde
    Product
    Insydeh2o

    Exploits

    https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-219 XML Routing Detour Attacks

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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