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    2 vulnerabilities by Micro-Star International (MSI)

    CVE-2026-57851 (GCVE-0-2026-57851)

    Vulnerability from nvd – Published: 2026-07-07 16:02 – Updated: 2026-07-09 18:50
    VLAI
    Title
    MSI KernCoreLib64.sys Privilege Escalation via IOCTL Handlers
    Summary
    MSI Feature Manager contains a local privilege escalation vulnerability in the KernCoreLib64.sys kernel driver that allows any locally logged-on user to perform arbitrary physical memory read/write and unrestricted I/O port operations by accessing exposed IOCTL handlers without administrator privileges. Attackers can exploit the accessible device object through IOCTL handlers to manipulate kernel objects, tamper with kernel-mode callbacks, bypass Protected Process Light protections, and disable security software.
    Severity
    8.5 (High)
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
    7.8 (High)
    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-782 - Exposed IOCTL with Insufficient Access Control
    Assigner
    References
    Impacted products
    Vendor Product Version
    Micro-Star International (MSI) KernCoreLib64.sys Affected: 0 , ≤ 1.0.2605.1301 (custom)
    		Create a notification for this product.
    Date Public
    2026-05-12 00:00
    Credits
    Turan Doruk Cerit
    Show details on NVD website
    To clipboard 

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    CVE-2026-57851 (GCVE-0-2026-57851)

    Vulnerability from cvelistv5 – Published: 2026-07-07 16:02 – Updated: 2026-07-09 18:50
    VLAI
    Title
    MSI KernCoreLib64.sys Privilege Escalation via IOCTL Handlers
    Summary
    MSI Feature Manager contains a local privilege escalation vulnerability in the KernCoreLib64.sys kernel driver that allows any locally logged-on user to perform arbitrary physical memory read/write and unrestricted I/O port operations by accessing exposed IOCTL handlers without administrator privileges. Attackers can exploit the accessible device object through IOCTL handlers to manipulate kernel objects, tamper with kernel-mode callbacks, bypass Protected Process Light protections, and disable security software.
    Severity
    8.5 (High)
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
    7.8 (High)
    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-782 - Exposed IOCTL with Insufficient Access Control
    Assigner
    References
    Impacted products
    Vendor Product Version
    Micro-Star International (MSI) KernCoreLib64.sys Affected: 0 , ≤ 1.0.2605.1301 (custom)
    		Create a notification for this product.
    Date Public
    2026-05-12 00:00
    Credits
    Turan Doruk Cerit
    Show details on NVD website
    To clipboard 

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