CVE-2025-7771 HIGH

CVE-2025-7771: Code Execution / Escalation of Privileges in ThrottleStop

Vendor Techpowerup
Product ThrottleStop
Weakness CWE-782
Published August 6, 2025
Last update August 6, 2025

CVSS base score

8.7/10
Attack vector Local
Attack complexity High
Privileges required High
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

What the vulnerability does

01Description

ThrottleStop.sys, a legitimate driver, exposes two IOCTL interfaces that allow arbitrary read and write access to physical memory via the MmMapIoSpace function. This insecure implementation can be exploited by a malicious user-mode application to patch the running Windows kernel and invoke arbitrary kernel functions with ring-0 privileges. The vulnerability enables local attackers to execute arbitrary code in kernel context, resulting in privilege escalation and potential follow-on attacks, such as disabling security software or bypassing kernel-level protections. ThrottleStop.sys version 3.0.0.0 and possibly others are affected. Apply updates per vendor instructions.

Key dates

02Disclosure timeline

August 6, 2025 CVE published
August 6, 2025 Record updated