CVE-2023-4996— Local privilege escalation
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I. Basic Information for CVE-2023-4996
Vulnerability Information
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Vulnerability Title
Local privilege escalation
Source: NVD (National Vulnerability Database)
Vulnerability Description
Netskope was made aware of a security vulnerability in its NSClient product for version 100 & prior where a malicious non-admin user can disable the Netskope client by using a specially-crafted package. The root cause of the problem was a user control code when called by a Windows ServiceController did not validate the permissions associated with the user before executing the user control code. This user control code had permissions to terminate the NSClient service.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
权限预留不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Netskope 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Netskope是美国Netskope公司的一款应用于云环境的威胁防护网关。 Netskope Client R100及之前版本存在安全漏洞，该漏洞源于Windows ServiceController 调用用户控制代码时，在执行用户控制代码之前未验证与用户关联的权限，攻击者利用该漏洞可以使用特制的软件包禁用 Netskope 客户端。
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 | 100 & prior | - |
II. Public POCs for CVE-2023-4996
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same product: Netskope Client
- CVE-2025-11156
Improper Service Loading Vulnerability in Netskope Endpoint - CVE-2025-5942
Heap Overflow in Netskope Endpoint DLP Driver - CVE-2025-0309
Netskope Client Local Elevation of Privileges - CVE-2025-5941
Out-of-Bounds Read Vulnerability in Netskope Client - CVE-2024-7402
Netskope Client Configuration Tampering with Local MITM
Same vendor: Netskope
Same weakness: CWE-281
- CVE-2026-35361
uutils coreutils mknod Security Label Inconsistency and Brok - CVE-2026-35351
uutils coreutils mv Silent Ownership Loss in Cross-Device Op - CVE-2026-35350
uutils coreutils cp Unexpected Privileged Executable Creatio - CVE-2026-35385
OpenSSH 安全漏洞 - CVE-2025-9615
Networkmanager: networkmanager file access
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