External Control of File Name or Path Vulnerability in smb4k by SUSE
CVE-2025-66003

7.3HIGH

Key Information:

Vendor

Https://github.com/kde/

Status
Smb4k
Vendor
CVE Published:
8 January 2026

What is CVE-2025-66003?

An External Control of File Name or Path vulnerability in smb4k allows local users to perform a local root exploit. This occurs through the smb4k mounthelper when users gain access to and can manipulate the contents of a Samba share. It is essential for users of smb4k to ensure they are running versions newer than 4.0.5 to mitigate this vulnerability and safeguard their systems against potential exploits.

Affected Version(s)

smb4k ? < 4.0.5

References

https://bugzilla.suse.com/show_bug.cgi?id=CVE-2025-66003
https://security.opensuse.org/2025/12/10/smb4k-major-issu...

CVSS V4

Score:
7.3
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Matthias Gerstner of SUSE
.