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CVE-2025-15641— Netskope Client Exposed IOCTL with Insufficient Access Controls

Quick assessment

Affected
Netskope Netskope Client
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Netskope Client是Netskope公司的一款用于连接管理Netskope云平台的客户端程序。 Netskope Client R138之前版本存在权限许可和访问控制问题漏洞，该漏洞源于潜在IOCTL处理问题，可能导致具有管理员权限的恶意内部人员发送特制IOCTL请求到驱动程序，从而绕过NSClient的所有防篡改保护。

AI Predicted 7.5 Difficulty: Easy EPSS 0.16% · P5

Affected Version Matrix 1

VendorProduct Version RangeStatus
Netskope Netskope Client < 138 affected
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I. Basic Information for CVE-2025-15641

Vulnerability Information
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Vulnerability Title
Netskope Client Exposed IOCTL with Insufficient Access Controls
Source: CVE Program / CVE List V5
Vulnerability Description
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
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
无充分访问控制条件下暴露IOCTL
Source: CVE Program / CVE List V5
Vulnerability Title
Netskope Client 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Netskope Client是Netskope公司的一款用于连接管理Netskope云平台的客户端程序。 Netskope Client R138之前版本存在权限许可和访问控制问题漏洞，该漏洞源于潜在IOCTL处理问题，可能导致具有管理员权限的恶意内部人员发送特制IOCTL请求到驱动程序，从而绕过NSClient的所有防篡改保护。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Netskope Netskope Client 0 ~ 138 -

II. Public POCs for CVE-2025-15641

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III. Intelligence Information for CVE-2025-15641

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Vendor Advisories for CVE-2025-15641 (1)

IV. Related Vulnerabilities

Same product: Netskope Client
Same vendor: Netskope
Same weakness: CWE-782

V. Comments for CVE-2025-15641

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