CVE-2025-66003
Unknown Unknown - Not Provided

External Control of File Path in smb4k Enables Local Root Exploit

Publication date: 2026-01-08

Last updated on: 2026-01-08

Assigner: SUSE

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-01-08
Last Modified
2026-01-08
Generated
2026-07-06
AI Q&A
2026-01-08
EPSS Evaluated
2026-07-05
NVD
CVE-2025-66003
EUVD
EUVD-2026-1571

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
unknown_vendor smb4k From 4.0.5 (exc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-73 The product allows user input to control or influence paths or file names that are used in filesystem operations.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is an External Control of File Name or Path issue in smb4k. It allows local users to perform a local root exploit via the smb4k mounthelper if they can access and control the contents of a Samba share. Essentially, if an attacker has access to a Samba share, they can manipulate file paths or names to escalate their privileges to root on the local system.

Impact Analysis

This vulnerability can allow a local user with access to a Samba share to escalate their privileges to root on the affected system. This means an attacker could gain full control over the system, potentially leading to unauthorized access, data modification, or disruption of services.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2025-66003. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart