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.
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History
Tue, 07 Jul 2026 18:30:00 +0000
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| Description | 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. | |
| Title | MSI KernCoreLib64.sys Privilege Escalation via IOCTL Handlers | |
| Weaknesses | CWE-782 | |
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-07-07T17:00:55.161Z
Reserved: 2026-06-25T18:48:00.282Z
Link: CVE-2026-57851
Updated: 2026-07-07T17:00:50.442Z
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OpenCVE Enrichment
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