CVE-2025-8061

HIGH

Lenovo Dispatcher <3.1 - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 5 public exploits for CVE-2025-8061. PoCs published by symeonp, spawn451, segura2010.

AI-analyzed exploit summary This repository contains a functional exploit PoC for CVE-2025-8061, targeting the Lenovo LnvMSRIO.sys driver (version 3.1.0.36) to achieve local privilege escalation (LPE) by leveraging arbitrary read/write primitives to bypass SMEP and execute token-stealing shellcode. The exploit includes detailed technical notes on offset adjustments, ASLR bypass techniques, and shellcode modifications for different Windows versions.

Description

A potential insufficient access control vulnerability was reported in the Lenovo Dispatcher 3.0 and Dispatcher 3.1 drivers used by some Lenovo consumer notebooks that could allow an authenticated local user to execute code with elevated privileges. The Lenovo Dispatcher 3.2 driver is not affected. This vulnerability does not affect systems when the Windows feature Core Isolation Memory Integrity is enabled. Lenovo systems preloaded with Windows 11 have this feature enabled by default.

Exploits (5)

github WORKING POC 118 stars
by symeonp · c++poc
https://github.com/symeonp/Lenovo-CVE-2025-8061

This repository contains a functional exploit PoC for CVE-2025-8061, targeting the Lenovo LnvMSRIO.sys driver (version 3.1.0.36) to achieve local privilege escalation (LPE) by leveraging arbitrary read/write primitives to bypass SMEP and execute token-stealing shellcode. The exploit includes detailed technical notes on offset adjustments, ASLR bypass techniques, and shellcode modifications for different Windows versions.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Complex
Reliability
Reliable
Target: Lenovo LnvMSRIO.sys driver (version 3.1.0.36)
No auth needed
Prerequisites: Windows 11 Version 24H2 with KVAShadowing and Core Isolation disabled · Specific kernel offsets for the target system · Administrative or local access to execute the exploit
devstral-2 · analyzed Feb 19, 2026 Full analysis →
nomisec WRITEUP 7 stars
by spawn451 · poc
https://github.com/spawn451/CVE-2025-8061-Exploit

This repository provides a detailed technical analysis of CVE-2025-8061, a vulnerability in the Lenovo MSR I/O Driver (LnvMSRIO.sys) that allows arbitrary physical memory read/write operations. It includes IOCTL details, input structures, and exploitation techniques using Superfetch for VA-to-PA translation.

Classification
Writeup 90%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: Lenovo MSR I/O Driver (LnvMSRIO.sys)
Auth required
Prerequisites: Administrator privileges · 64-bit Windows · Driver file (LnvMSRIO.sys)
devstral-2 · analyzed Feb 19, 2026 Full analysis →
nomisec WORKING POC 3 stars
by segura2010 · poc
https://github.com/segura2010/lenovo-dispatcher-poc

This repository contains a functional proof-of-concept exploit for CVE-2025-8061, targeting the Lenovo Dispatcher driver (LnvMSRIO.sys). The exploit leverages read/write primitives to steal the system token from ntoskrnl.exe by translating virtual to physical addresses using Superfetch/PFN and overwriting the NtAddAtom function with shellcode.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Complex
Reliability
Reliable
Target: Lenovo Dispatcher driver (LnvMSRIO.sys) on Windows 10 (22h2) and Windows 11 (25h2)
Auth required
Prerequisites: Administrative privileges · Lenovo Dispatcher driver installed · Windows 10 (22h2) or Windows 11 (25h2)
devstral-2 · analyzed Feb 19, 2026 Full analysis →
github WORKING POC 2 stars
by adminlove520 · pythonpoc
https://github.com/adminlove520/CVE-Poc_All_in_One/tree/main/2025/CVE-2025-8061

The repository contains functional exploit code for multiple CVEs, including authentication bypass vulnerabilities in TOTOLINK devices and a scanner for Fortinet SSL VPN (CVE-2024-21762). The PoCs demonstrate the vulnerabilities with clear technical details and functional code.

Classification
Working Poc 90%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: TOTOLINK LR350, TOTOLINK T6, Fortinet SSL VPN
No auth needed
Prerequisites: network access to the target device
devstral-2 · analyzed Feb 27, 2026 Full analysis →
github WORKING POC
by vxqs · c++poc
https://github.com/vxqs/Lenovo-CVE-2025-8061

The repository contains a functional PoC for CVE-2025-8061, demonstrating privilege escalation via Lenovo's LnvMSRIO.sys driver by reading/writing MSRs and physical memory. The code includes driver interaction, process enumeration, and PEB address retrieval, confirming exploitability.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: Lenovo LnvMSRIO.sys driver
No auth needed
Prerequisites: Lenovo system with vulnerable LnvMSRIO.sys driver · notepad.exe running for PID demonstration
devstral-2 · analyzed Apr 26, 2026 Full analysis →

References (1)

Core 1

Scores

CVSS v3 7.0
EPSS 0.0001
EPSS Percentile 0.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-782
Status published
Products (2)
Lenovo/Dispatcher 3.0 Driver < 3.1.0.41
Lenovo/Dispatcher 3.1 Driver < 3.1.0.41
Published Sep 11, 2025
Tracked Since Feb 18, 2026