---
id: CVE-2025-15641
title: >-
  Netskope was notified about a potential gap in its Netskope Client for Windows
  systems where a malicious insider with administrative privileges can
  potentially tamper with the customer IOCTL by sending crafted IOCTL requests
  to the drive…
summary: >-
  Netskope was notified about a potential gap in its Netskope Client for Windows
  systems where a malicious insider with administrative privileges can
  potentially tamper with the customer IOCTL by sending crafted IOCTL requests
  to the drive…
severity: none
cwe:
  - CWE-782
published: '2026-06-17'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T21:10:00.190'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-15641'
references:
  - url: >-
      https://www.netskope.com/resources/netskope-resources/netskope-security-advisory-nskpsa-2025-007
    label: psirt@netskope.com
tags:
  - nvd
epss: 0.00163
epssPercentile: 0.04904
ingestedAt: '2026-09-30T21:25:07.751Z'
---

## Overview

Netskope was notified about a potential gap in its Netskope Client for Windows systems where a malicious insider with administrative privileges can potentially tamper with the customer IOCTL by sending crafted IOCTL requests to the driver. A successful exploit can result in the bypassing of all anti-tampering protections for the NSClient.Affected Product(s) and Version(s)
  *  Product Name: Netskope Client
  *  Affected Platform: Windows
  *  Affected Version: All version below R138

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.