---
id: 4336
title: "BYOVD to the next level (part 1) — exploiting a vulnerable driver (CVE-2025-8061)"
cve: CVE-2025-8061
cvss: 7
severity: high
source_domain: blog.quarkslab.com
source_url: "https://blog.quarkslab.com/exploiting-lenovo-driver-cve-2025-8061.html"
published_at: "2025-09-22 22:00"
tags: ["privilege-escalation", "windows", "driver", "byovd", "cve-2025-8061", "lenovo"]
phying_url: "https://phying.com/item/4336"
lang: en
---

# BYOVD to the next level (part 1) — exploiting a vulnerable driver (CVE-2025-8061)

## Summary

Part one of Quarkslab's BYOVD series: reverse engineering Lenovo's signed LnvMSRIO.sys driver (CVE-2025-8061) and exploiting logical bugs for MSR and physical memory access, leading to LPE.

## Intelligence Metadata

- **Sources:** blog.quarkslab.com
- **CVE:** CVE-2025-8061
- **CVSS:** 7
- **Published:** 2025-09-22 22:00
- **Original:** https://blog.quarkslab.com/exploiting-lenovo-driver-cve-2025-8061.html
- **Phying News:** https://phying.com/item/4336