CVE-2026-57851— MSI KernCoreLib64.sys Privilege Escalation via IOCTL Handlers
Quick assessment
Affected
Micro-Star International (MSI) KernCoreLib64.sys
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Micro-Star International Feature Navigator是Micro-Star International公司的一款直观易用的工具，旨在通过简便的管理和优化，帮助用户最大限度地提高 MSI 组件的性能。 Micro-Star International Feature Navigator存在权限许可和访问控制问题漏洞，该漏洞源于KernCoreLib64.sys内核驱动程序暴露IOCTL句柄且无需管理员权限，允许任意本地登录用户进行物理内存读写和不受限制的I/O端口操作，导致权
Possible ATT&CK Techniques 3 AI
T1014 · Rootkit T1055 · Process Injection T1068 · Exploitation for Privilege EscalationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Micro-Star International (MSI) | KernCoreLib64.sys | ≤ 1.0.2605.1301 |
affected |
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I. Basic Information for CVE-2026-57851
Vulnerability Information
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Vulnerability Title
MSI KernCoreLib64.sys Privilege Escalation via IOCTL Handlers
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
无充分访问控制条件下暴露IOCTL
Source: CVE Program / CVE List V5
Vulnerability Title
Micro-Star International Feature Navigator 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Micro-Star International Feature Navigator是Micro-Star International公司的一款直观易用的工具，旨在通过简便的管理和优化，帮助用户最大限度地提高 MSI 组件的性能。 Micro-Star International Feature Navigator存在权限许可和访问控制问题漏洞，该漏洞源于KernCoreLib64.sys内核驱动程序暴露IOCTL句柄且无需管理员权限，允许任意本地登录用户进行物理内存读写和不受限制的I/O端口操作，导致权
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Micro-Star International (MSI) | KernCoreLib64.sys | 0 ~ 1.0.2605.1301 | - |
|
II. Public POCs for CVE-2026-57851
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Qwen3.6-35B-A3B
· 10384 chars
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III. Intelligence Information for CVE-2026-57851
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Vendor Advisories for CVE-2026-57851 (1)
Proof of Concept for CVE-2026-57851 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2026-57851
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