CVE-2025-8061Public exploit

Local privilege escalation via unrestricted driver IOCTLs

Published Sep 11, 2025 · Updated Sep 22, 2025

Insufficient access control in Lenovo Dispatcher drivers before 3.1.0.41 allows local users to execute code with elevated privileges. The LnvMSRIO.sys device exposes IOCTL handlers that pass caller-controlled physical addresses and MSR identifiers to privileged mapping and register operations without an access check. Exploitation requires local authenticated access and disabled Core Isolation Memory Integrity; success yields kernel-level code execution, while unstable attempts can crash Windows.

CVSS severity7.3
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Insufficient access control in Lenovo Dispatcher drivers before 3.1.0.41 allows local users to execute code with elevated privileges. The LnvMSRIO.sys device exposes IOCTL handlers that pass caller-controlled physical addresses and MSR identifiers to privileged mapping and register operations without an access check. Exploitation requires local authenticated access and disabled Core Isolation Memory Integrity; success yields kernel-level code execution, while unstable attempts can crash Windows.

The record

CVE
CVE-2025-8061
Published
Sep 11, 2025
Updated
Sep 22, 2025
Vendor
Lenovo
Product
Dispatcher Driver
Classifications
CWE-782, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 22, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <3.1.0.41

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Lenovo · Dispatcher Driverversion=0 <3.1.0.41

Published CVSS scores

7.3Lenovo Group Ltd.CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.0Lenovo Group Ltd.CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-782Exposed IOCTL with Insufficient Access Control
T1068Exploitation for Privilege Escalation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo