Vulnerability · Published Aug 6, 2025 · Assigned by Kaspersky
CVE-2025-7771Code Execution / Escalation of Privileges in ThrottleStop
High 8.7
In plain English
A high-severity security flaw in ThrottleStop from TechPowerUp. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 8.3% (higher than 95% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| TechPowerUp | ThrottleStop | 3.0.0.0 and possibly others |
Weakness: CWE-782 · 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