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CVE-2025-65199— Windscribe for Linux 'changeMTU' local privilege escalation

Quick assessment

Affected
Windscribe Windscribe for Linux Desktop App
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.

Windscribe Desktop Application是Windscribe开源的一个VPN软件。 Windscribe Desktop Application 2.18.3-alpha之前版本和2.18.8之前版本存在安全漏洞，该漏洞源于changeMTU函数中adapterName参数存在命令注入，可能导致本地用户执行任意命令。

CVSS 7.8 · High EPSS 1.27% · P68
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I. Basic Information for CVE-2025-65199

Vulnerability Information
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Vulnerability Title
Windscribe for Linux 'changeMTU' local privilege escalation
Source: CVE Program / CVE List V5
Vulnerability Description
A command injection vulnerability exists in Windscribe for Linux Desktop App that allows a local user who is a member of the windscribe group to execute arbitrary commands as root via the 'adapterName' parameter of the 'changeMTU' function. Fixed in Windscribe v2.18.3-alpha and v2.18.8.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Windscribe Desktop Application 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Windscribe Desktop Application是Windscribe开源的一个VPN软件。 Windscribe Desktop Application 2.18.3-alpha之前版本和2.18.8之前版本存在安全漏洞，该漏洞源于changeMTU函数中adapterName参数存在命令注入，可能导致本地用户执行任意命令。
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
Windscribe Windscribe for Linux Desktop App 2.10.1 ~ 2.18.3-alpha -

II. Public POCs for CVE-2025-65199

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 10558 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2025-65199

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Vendor Advisories for CVE-2025-65199 (1)

Other References for CVE-2025-65199 (5)

IV. Related Vulnerabilities

Same vendor: Windscribe
Same weakness: CWE-78

V. Comments for CVE-2025-65199

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