CVE-2025-7771 Code Execution / Escalation of Privileges in ThrottleStop
Local attackers can exploit insecure IOCTLs in the ThrottleStop driver to read/write physical memory, enabling arbitrary kernel code execution and privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-7771?
CVE-2025-7771 is a high-severity vulnerability in TechPowerUp ThrottleStop, published on 6 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.
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.
Weakness: CWE-782
Which versions are affected by CVE-2025-7771?
How do I fix CVE-2025-7771?
No fix has been published for CVE-2025-7771 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-7771 being exploited?
There is no known exploitation of CVE-2025-7771 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry and 14 proofs of concept on GitHub.
Sources
Also known as GHSA-f8p7-vvxp-hcxv.