# CVE-2026-57851

## Summary

- **CVE ID:** CVE-2026-57851
- **Severity:** HIGH
- **CVSS Score:** 8.5 (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)
- **CWE:** CWE-782
- **Published:** Jul 7, 2026
- **Last Modified:** Jul 28, 2026

## 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.

## Affected Products

- Micro-Star International (MSI) — KernCoreLib64.sys (0)

## References

- [CNA](https://github.com/readmsr/MSI_FeatureManager_CVE)
- [CNA](https://www.vulncheck.com/advisories/msi-gamegaraj-kerncorelib64-sys-privilege-escalation-via-ioctl-handlers)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.17%
- **EPSS Percentile:** 6.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._