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CVE-2025-66003— Local users can perform a local root exploit via smb4k mounthelper

Quick assessment

Affected
https://github.com/KDE/ smb4k
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.

Smb4K是KDE开源的一个网上邻居浏览器。 Smb4K 4.0.5之前版本存在安全漏洞，该漏洞源于文件名或路径外部控制，可能导致本地用户执行本地root攻击。

AI Predicted 7.8 Difficulty: Easy EPSS 0.10% · P1
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I. Basic Information for CVE-2025-66003

Vulnerability Information
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Vulnerability Title
Local users can perform a local root exploit via smb4k mounthelper
Source: CVE Program / CVE List V5
Vulnerability Description
An External Control of File Name or Path vulnerability in smb4k allowsl ocal users to perform a local root exploit via smb4k mounthelper if they can access and control the contents of a Samba shareThis issue affects smb4k: from ? before 4.0.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
Smb4K 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Smb4K是KDE开源的一个网上邻居浏览器。 Smb4K 4.0.5之前版本存在安全漏洞，该漏洞源于文件名或路径外部控制，可能导致本地用户执行本地root攻击。
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
https://github.com/KDE/ smb4k ? ~ 4.0.5 -

II. Public POCs for CVE-2025-66003

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III. Intelligence Information for CVE-2025-66003

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Vendor Advisories for CVE-2025-66003 (1)

IV. Related Vulnerabilities

Same product: smb4k
Same vendor: https://github.com/KDE/
Same weakness: CWE-73

V. Comments for CVE-2025-66003

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