CVE-2025-7771
HIGH 8.7EPSS 6.8%
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.
- CVSS v4.0
- 8.7 HIGH
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/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 - EPSS
- 6.83% chance of exploitation in the next 30 days, 94th percentile
- Published
- 2025-08-06
Proof-of-concept exploits (9)
- Demoo1337/ThrottleStop11★ · 2025-09-07
- AmrHuss/throttlestop-exploit-rw
- D4rkks/CVE-2025-7771-Vulnerability-Exploration
- Gabriel-Lacorte/CVE-2025-7771
- enessakircolak/CVE-2025-7771
- lzty/CVE-2025-7771
- mein-0/cve-2025-7771
- xM0kht4r/CVE-2025-7771
- dexso120/throttlestop-poc