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smb4k

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.

CVE-2025-66003 is a vulnerability classified under CWE-73 (External Control of File Name or Path) found in smb4k, a KDE project utility designed to facilitate the management and mounting of Samba shares on Linux systems. The flaw exists in the smb4k mounthelper component, which improperly handles file paths controlled externally by users who have access to Samba shares. Specifically, local users with limited privileges who can access and manipulate the contents of a Samba share can exploit this vulnerability to perform a local root privilege escalation. This occurs because the mounthelper trusts file paths or names originating from the Samba share without sufficient validation or sanitization, allowing crafted inputs to influence system-level operations. The vulnerability affects all versions prior to 4.0.5, with no patch links currently provided but an upgrade path implied. The CVSS 4.0 vector indicates a local attack vector (AV:L), high attack complexity (AC:H), no privileges required beyond local user (PR:L), no user interaction (UI:N), and high impact on confidentiality, integrity, and availability (VC:H, VI:H, VA:H). No known exploits have been reported in the wild, but the potential for local root compromise makes this a critical concern for environments where smb4k is deployed and Samba shares are accessible to untrusted or semi-trusted users.

Detailed information about CVE-2025-66003: CWE-73: External Control of File Name or Path in https://github.com/KDE/ smb4k affecting https://github.com/KDE/ smb4

CVE-2025-66003: CWE-73: External Control of File Name or Path in https://github.com/KDE/ smb4k - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2025-66003: CWE-73: External Control of File Name or Path in https://github.com/KDE/ smb4k

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