CVE-2026-57851

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/readmsr/MSI_FeatureManager_CVE
https://www.vulncheck.com/advisories/msi-gamegaraj-kerncorelib64-sys-privilege-escalation-via-ioctl-handlers

Configurations

No configuration.

History

25 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) MSI Feature Manager contiene una vulnerabilidad de escalada de privilegios local en el controlador de kernel KernCoreLib64.sys que permite a cualquier usuario con sesión iniciada localmente realizar operaciones arbitrarias de lectura/escritura de memoria física y operaciones de puerto de E/S sin restricciones al acceder a manejadores IOCTL expuestos sin privilegios de administrador. Los atacantes pueden explotar el objeto de dispositivo accesible a través de los manejadores IOCTL para manipular objetos del kernel, alterar las devoluciones de llamada en modo kernel, eludir las protecciones de Proceso Protegido Ligero y deshabilitar el software de seguridad.

Information

Published : 2026-07-07 17:16

Updated : 2026-10-25 20:10

NVD link : CVE-2026-57851

Mitre link : CVE-2026-57851

CVE.ORG link : CVE-2026-57851

JSON object : View

Products Affected

No product.

CWE

CWE-782

Exposed IOCTL with Insufficient Access Control

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