#VU120876 Input validation error in smb4k - CVE-2025-66002

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Main Vulnerability Database Vulnerabilities #VU120876

#VU120876 Input validation error in smb4k - CVE-2025-66002

Published: January 2, 2026 / Updated: January 12, 2026


Vulnerability identifier: #VU120876
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-66002
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
smb4k
Software vendor:
KDE.org

Description

The vulnerability allows a local user to perform arbitrary unmounts.

The vulnerability exists due to insufficient validation of user-supplied input within the Smb4KMountHelper::unmount() function in smb4kmounthelper.cpp. A local user can unmount arbitrary file system and perform a denial of service attack.


Remediation

Install updates from vendor's website.

External links