CVE-2025-0309— Netskope Client Local Elevation of Privileges
Quick assessment
Affected
Netskope Netskope Client
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Netskope Client是美国Netskope公司的一款用于连接管理Netskope云平台的客户端程序。 Netskope Client存在安全漏洞，该漏洞源于服务器连接端点验证不足，可能导致本地用户权限提升。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2025-0309
Vulnerability Information
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Vulnerability Title
Netskope Client Local Elevation of Privileges
Source: CVE Program / CVE List V5
Vulnerability Description
An insufficient validation on the server connection endpoint in Netskope Client allows local users to elevate privileges on the system. The insufficient validation allows Netskope Client to connect to any other server with Public Signed CA TLS certificates and send specially crafted responses to elevate privileges.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:P/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Netskope Client 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Netskope Client是美国Netskope公司的一款用于连接管理Netskope云平台的客户端程序。 Netskope Client存在安全漏洞，该漏洞源于服务器连接端点验证不足，可能导致本地用户权限提升。
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 ~ 129.0.0 | - |
|
II. Public POCs for CVE-2025-0309
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | Custom IPC Client and Proof of Concept exploit for CVE-2025-0309 (Netskope Windows Client LPE) | https://github.com/AmberWolfCyber/UpSkope | POC Details |
AI-Generated POC
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Security Blog Posts for CVE-2025-0309 (1)
-
🔗 Breaking Into Your Network? Zer0 Effort. - DEF CON 33 Overview Read full article third-party-advisory
Same Patch Batch · Netskope · 2025-08-14 · 4 CVEs total
| CVE-2025-5942 | Heap Overflow in Netskope Endpoint DLP Driver | |
| CVE-2025-5941 | Out-of-Bounds Read Vulnerability in Netskope Client | |
| CVE-2024-7402 | Netskope Client Configuration Tampering with Local MITM |
IV. Related Vulnerabilities
Same product: Netskope Client
-
CVE-2025-15642
Netskope Client Service Insufficient Access Controls -
CVE-2025-15641
Netskope Client Exposed IOCTL with Insufficient Access Contr -
CVE-2025-11156
Improper Service Loading Vulnerability in Netskope Endpoint -
CVE-2025-5942
Heap Overflow in Netskope Endpoint DLP Driver -
CVE-2025-5941
Out-of-Bounds Read Vulnerability in Netskope Client
Same vendor: Netskope
-
CVE-2026-15710
Netskope Client Endpoint DLP Kernel Driver Information Leaka -
CVE-2026-16174
Netskope Endpoint DLP Driver Integer Overflow Leading to Ker -
CVE-2026-16172
Netskope Endpoint DLP Service Out-of-Bounds Read Leading to -
CVE-2025-15642
Netskope Client Service Insufficient Access Controls -
CVE-2025-15641
Netskope Client Exposed IOCTL with Insufficient Access Contr
V. Comments for CVE-2025-0309
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