CVE-2025-66003

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 4.0

7.3CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS

0.1% chance of exploitation in the next 30 days; higher than 1% of CVEs (scores of 2026-10-25)

CWE

CWE-73

Published

2026-01-08

Modified

2026-10-11

Record from

the NVD, synced 2026-10-19

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

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