CVE-2025-7771

Aug. 6, 2025, 8:23 p.m.

8.7
High

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.

Product(s) Impacted

Vendor Product Versions
Kaspersky
  • Throttlestop
  • 3.0.0.0, *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-782
Exposed IOCTL with Insufficient Access Control
The product implements an IOCTL with functionality that should be restricted, but it does not properly enforce access control for the IOCTL.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a kaspersky throttlestop 3.0.0.0 / / / / / / /
a kaspersky throttlestop / / / / / / / /

References

https://github.com/klsecservices/Advisories/blob/master/K-TechPowerUp-2025-001.md
https://securelist.com/av-killer-exploiting-throttlestop-sys/117026/
https://www.techpowerup.com/download/techpowerup-throttlestop/

Tags

vulnerability@kaspersky.com
CWE-782
2025-08-06
CVE-2025-7771

CVSS Score

8.7 / 10

CVSS Data - 4.0

  • Attack Vector: LOCAL
  • Attack Complexity: HIGH
  • Attack Requirements: NONE
  • Privileges Required: HIGH
  • User Interaction: NONE
  • Scope:
  • Confidentiality Impact: HIGH
  • Integrity Impact: HIGH
  • Availability Impact: HIGH
  • Exploit Maturity: NOT_DEFINED

    • 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

    View Vector String

Timeline

Published: Aug. 6, 2025, 10:15 a.m.
Last Modified: Aug. 6, 2025, 8:23 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

vulnerability@kaspersky.com

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.