CVE-2025-7771
"ThrottleStop.sys Kernel Memory Access Vulnerability"
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.
INFO
Published Date :
Aug. 6, 2025, 10:15 a.m.
Last Modified :
Aug. 6, 2025, 8:23 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-7771
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | HIGH | [email protected] |
Public PoC/Exploit Available at Github
CVE-2025-7771 has a 2 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-7771.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-7771 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-7771
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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.
cve-2025 cve-2025-7771
C++
📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.
security cve exploit poc vulnerability
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-7771 vulnerability anywhere in the article.
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Daily CyberSecurity
BYOVD Attack: A New AV Killer Exploits a Legitimate Driver to Neutralize Defenses for MedusaLocker Ransomware
Incident flow | Image: Kaspersky Labs A recent incident response operation in Brazil has revealed a stealthy and destructive threat abusing the trusted architecture of the Windows kernel. In its lates ... Read more
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security.nl
Aanvallers gebruiken ThrottleStop-driver voor uitschakelen antivirussoftware
Aanvallers maken gebruik van een kwetsbaarheid in een driver van TechPowerUp ThrottleStop om antivirussoftware op systemen uit te schakelen en uiteindelijk ransomware uit te rollen. Dat laat antivirus ... Read more
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Kaspersky
Driver of destruction: How a legitimate driver is being used to take down AV processes
Introduction In a recent incident response case in Brazil, we spotted intriguing new antivirus (AV) killer software that has been circulating in the wild since at least October 2024. This malicious ar ... Read more
The following table lists the changes that have been made to the
CVE-2025-7771 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Aug. 06, 2025
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-782 Added Reference https://github.com/klsecservices/Advisories/blob/master/K-TechPowerUp-2025-001.md Added Reference https://securelist.com/av-killer-exploiting-throttlestop-sys/117026/ Added Reference https://www.techpowerup.com/download/techpowerup-throttlestop/