CVE-2025-7771

HIGH EXPLOITED RANSOMWARE

ThrottleStop.sys - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2025-7771 has been observed exploited in the wild (reported by VulnCheck KEV), including in ransomware campaigns. EIP tracks 15 public exploits from researchers including Xavi Beltran, DeathShotXD, Yuri08loveElaina.

AI-analyzed exploit summary This exploit leverages a kernel out-of-bounds write vulnerability in the Throttlestop driver to achieve privilege escalation by disabling protections on the LSASS process and injecting a malicious DLL. It demonstrates full exploit chain functionality, including driver installation, memory manipulation, and process protection bypass.

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.

Exploits (15)

exploitdb WORKING POC
by Xavi Beltran · textlocalwindows
https://www.exploit-db.com/exploits/52512

This exploit leverages a kernel out-of-bounds write vulnerability in the Throttlestop driver to achieve privilege escalation by disabling protections on the LSASS process and injecting a malicious DLL. It demonstrates full exploit chain functionality, including driver installation, memory manipulation, and process protection bypass.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Complex
Reliability
Reliable
Target: Throttlestop Kernel Driver 3.0.0.0
No auth needed
Prerequisites: Windows 11 environment · Ability to install a vulnerable driver · Access to the vulnerable driver file
devstral-2 · analyzed Apr 30, 2026 Full analysis →
nomisec WORKING POC 40 stars
by DeathShotXD · poc
https://github.com/DeathShotXD/0xKern3lCrush

The repository contains a functional exploit PoC for CVE-2025-7771, targeting the ThrottleStop.sys driver to terminate arbitrary processes via a vulnerable IOCTL. The PoC includes detailed technical analysis and a working C-based exploit.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: ThrottleStop.sys (MedusaLocker ransomware abuse)
No auth needed
Prerequisites: Driver loaded as a service · Access to the vulnerable IOCTL
devstral-2 · analyzed May 20, 2026 Full analysis →
nomisec WRITEUP 22 stars
by DeathShotXD · poc
https://github.com/DeathShotXD/0xKern3lCrush-Foreverday-BYOVD-CVE-2026-0828

This repository provides a detailed technical analysis of BYOVD (Bring-Your-Own-Vulnerable-Driver) techniques, focusing on CVE-2026-0828 and CVE-2025-7771. It includes research notes, mitigation strategies, and safe reconnaissance code but does not contain functional exploit code.

Classification
Writeup 95%
Attack Type
Other
Complexity
Moderate
Reliability
Theoretical
Target: Safetica ProcessMonitorDriver.sys (CVE-2026-0828), ThrottleStop.sys (CVE-2025-7771)
No auth needed
Prerequisites: Vulnerable driver loaded on the target system · User-mode access to send IOCTLs
devstral-2 · analyzed Feb 19, 2026 Full analysis →
nomisec WORKING POC 14 stars
by Yuri08loveElaina · local
https://github.com/Yuri08loveElaina/CVE-2025-7771

The repository contains a functional exploit for CVE-2025-7771, a privilege escalation vulnerability in ThrottleStop.sys due to exposed IOCTLs allowing arbitrary kernel memory read/write. The exploit leverages DeviceIoControl to patch kernel structures and escalate privileges.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: ThrottleStop.sys 3.0.0.0
No auth needed
Prerequisites: Local access to a vulnerable Windows system with ThrottleStop.sys installed
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 11 stars
by fxrstor · poc
https://github.com/fxrstor/ThrottleStopPoC

This repository contains a functional exploit PoC for CVE-2025-7771, demonstrating arbitrary physical memory and I/O port read/write via the ThrottleStop driver. The exploit leverages vulnerable IOCTLs to perform these operations and includes code for virtual-to-physical address translation.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: ThrottleStop driver (Windows 11 build 24H2)
No auth needed
Prerequisites: ThrottleStop driver installed and running · Windows 11 build 24H2
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 10 stars
by AmrHuss · local
https://github.com/AmrHuss/throttlestop-exploit-rw

The repository contains a functional exploit for CVE-2025-7771, demonstrating arbitrary physical memory read/write via a vulnerable driver (ThrottleStop.sys). It includes code for virtual-to-physical address translation and driver interaction to manipulate kernel memory.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: ThrottleStop.sys (ThrottleStop 3.0.0.0)
No auth needed
Prerequisites: Vulnerable ThrottleStop.sys driver installed · Local access to the target system
devstral-2 · analyzed Feb 19, 2026 Full analysis →
nomisec WORKING POC 9 stars
by Gabriel-Lacorte · local
https://github.com/Gabriel-Lacorte/CVE-2025-7771

This repository contains a functional exploit for CVE-2025-7771, which abuses the ThrottleStop driver to invoke arbitrary kernel-mode functions from usermode. The exploit demonstrates calling the kernel function 'DbgPrint' as a proof of concept.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: ThrottleStop driver (version not specified)
No auth needed
Prerequisites: ThrottleStop driver installed and vulnerable · Local access to the target system
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 8 stars
by xM0kht4r · local
https://github.com/xM0kht4r/CVE-2025-7771

This repository contains a functional exploit PoC for CVE-2025-7771, targeting the ThrottleStop.sys driver to achieve arbitrary physical memory read/write and virtual-to-physical address translation. The exploit leverages Superfetch for address translation and provides commands for process protection/hiding.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: ThrottleStop.sys driver
Auth required
Prerequisites: Administrator privileges · Vulnerable ThrottleStop.sys driver installed
devstral-2 · analyzed Feb 19, 2026 Full analysis →
nomisec WORKING POC 5 stars
by Demoo1337 · local
https://github.com/Demoo1337/ThrottleStop

This repository contains a functional proof-of-concept exploit for CVE-2025-7771, demonstrating local privilege escalation via unrestricted IOCTL interfaces in ThrottleStop.sys. The exploit leverages physical memory read/write operations to achieve arbitrary code execution in kernel context.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: ThrottleStop.sys (TechPowerUp)
Auth required
Prerequisites: Administrator privileges · ThrottleStop.sys driver installed and running · Visual Studio 2019/2022 for compilation
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 4 stars
by v31l0x1 · poc
https://github.com/v31l0x1/ThrottleStopPPL

This repository contains a functional proof-of-concept exploit for CVE-2025-7771, leveraging arbitrary physical memory read/write capabilities in the ThrottleStop driver to manipulate Protected Process Light (PPL) protection levels on Windows Server 2022.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: ThrottleStop driver on Windows Server 2022
Auth required
Prerequisites: Administrator privileges · ThrottleStop driver loaded · Windows Server 2022
devstral-2 · analyzed Feb 19, 2026 Full analysis →
github SCANNER 2 stars
by adminlove520 · pythonpoc
https://github.com/adminlove520/CVE-Poc_All_in_One/tree/main/2025/CVE-2025-7771

The repository contains a scanner for CVE-2024-21762, a Fortinet SSL VPN vulnerability, which checks for the presence of the vulnerability by sending crafted HTTP requests. It also includes writeups for other CVEs like CVE-2024-10654, detailing authentication bypass vulnerabilities in TOTOLINK devices.

Classification
Scanner 90%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Fortinet SSL VPN, TOTOLINK LR350, TOTOLINK T6
No auth needed
Prerequisites: network access to target · Python environment
devstral-2 · analyzed Feb 27, 2026 Full analysis →
nomisec WORKING POC 2 stars
by lzty · poc
https://github.com/lzty/CVE-2025-7771

This repository contains a functional Rust-based exploit for CVE-2025-7771, leveraging a vulnerable driver binary embedded as a static array to achieve arbitrary read/write primitives. The exploit includes components for driver interaction, service management, and memory manipulation, indicating a local privilege escalation (LPE) attack.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Complex
Reliability
Reliable
Target: Unknown (driver-based vulnerability, likely Windows)
No auth needed
Prerequisites: Vulnerable driver loaded on the target system · Local access to the target machine
devstral-2 · analyzed Feb 19, 2026 Full analysis →
nomisec WRITEUP 1 stars
by D4rkks · poc
https://github.com/D4rkks/CVE-2025-7771-Vulnerability-Exploration

This repository provides a detailed technical analysis of CVE-2025-7771, a vulnerability in ThrottleStop.sys that allows arbitrary physical memory read/write via exposed IOCTLs. The writeup includes root cause analysis, exploitation chain, and HVCI bypass mechanisms.

Classification
Writeup 95%
Attack Type
Lpe
Complexity
Complex
Reliability
Reliable
Target: ThrottleStop.sys (all versions with vulnerable IOCTLs)
Auth required
Prerequisites: Local Administrator access · ThrottleStop.sys loaded
devstral-2 · analyzed Apr 18, 2026 Full analysis →
github WORKING POC
by mein-0 · c++local
https://github.com/mein-0/cve-2025-7771

This repository contains a functional exploit for CVE-2025-7771, which leverages arbitrary physical memory read/write via ThrottleStop.sys IOCTL handlers to escalate privileges by stealing the SYSTEM token. The exploit uses Superfetch to build a virtual-to-physical memory map and targets Windows 10/11 x64 systems.

Classification
Working Poc 100%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: ThrottleStop.sys (Windows 10/11 x64)
Auth required
Prerequisites: Administrator privileges · ThrottleStop.sys driver loaded · Windows 10/11 x64 (22H2/23H2)
devstral-2 · analyzed May 24, 2026 Full analysis →
vulncheck_xdb WORKING POC
local
https://github.com/U65535F/ThrottleStopPoC

This repository contains a functional exploit PoC for CVE-2025-7771, demonstrating arbitrary physical memory and I/O port read/write via the ThrottleStop driver. The exploit leverages vulnerable IOCTLs to achieve these operations and includes code for virtual-to-physical address translation.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: ThrottleStop driver (Windows 11 build 24H2)
No auth needed
Prerequisites: ThrottleStop driver installed and running · Windows 11 build 24H2
devstral-2 · analyzed Feb 25, 2026 Full analysis →

Scores

CVSS v4 8.7
EPSS 0.0039
EPSS Percentile 60.6%
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

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

VulnCheck KEV 2025-08-05
Ransomware Use Confirmed
CWE
CWE-782
Status published
Products (1)
TechPowerUp/ThrottleStop 3.0.0.0 and possibly others
Published Aug 06, 2025
Tracked Since Feb 18, 2026