CVE-2025-66003

Local users can perform a local root exploit via smb4k mounthelper

State: Published
Severity: 7.3 High
Published: Jan 8, 2026
Updated: Jan 8, 2026
Reserved: Nov 19, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	7.3 High	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	suse

Weaknesses

CWE-73 External Control of File Name or Path

Affected Products

Product	Versions
smb4khttps://github.com/KDE/	? to before 4.0.5Affected

References

https://bugzilla.suse.com/show_bug.cgi?id=CVE-2025-66003
https://security.opensuse.org/2025/12/10/smb4k-major-issues-in-kauth-helper.html

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.