Vulnerability in Micro-star International (Msi) Kerncorelib64.sys
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 a…
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Micro-star International (Msi) Kerncorelib64.sys — versions 0, physical memory, I/O ports
Weakness classification (CWE)
Public proof-of-concept exploits
References
- disclosure@vulncheck.com (exploit)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-57851?
- CVE-2026-57851 is a high-severity vulnerability in Micro-star International (Msi) Kerncorelib64.sys, classified under CWE-782. CVSS score: 7.8/10. Published 2026-07-07.
- How severe is CVE-2026-57851?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2026-57851 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.