CVE-2025-66002

Local users can perform arbitrary unmounts via smb4k mount helper due to lack of input validation

6.9 MediumFix available

An Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability allows local users ton perform arbitrary unmounts via smb4k mount helper

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: High

Exploit likelihood

0.16%Up 0.1 points since Jan 9, 2026

What each source reports

CVE List Score used 6.9

Local users can perform arbitrary unmounts via smb4k mount helper due to lack of input validation

An Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability allows local users ton perform arbitrary unmounts via smb4k mount helper

Record: CVE-2025-66002
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Weakness: CWE-88
Updated: 2026-11-02

EUVDEUVD-2026-1563 6.9

An Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability allows local users ton perform arbitrary unmounts via smb4k mount helper

Record: EUVD-2026-1563
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-g8f7-f2vp-fv6x 6.9

An Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')...

An Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability allows local users ton perform arbitrary unmounts via smb4k mount helper

Record: GHSA-g8f7-f2vp-fv6x
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness: CWE-88
Updated: 2026-11-02

NVD 6.9

An Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability allows local users ton perform arbitrary unmounts via smb4k mount helper

Record: CVE-2025-66002
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness: CWE-88
Updated: 2026-11-02

OSVDEBIAN-CVE-2025-66002 6.9

An Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability allows local users ton perform arbitrary unmounts via smb4k mount helper

Record: DEBIAN-CVE-2025-66002
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Updated: 2026-11-02

OSVUBUNTU-CVE-2025-66002 6.9

An Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability allows local users ton perform arbitrary unmounts via smb4k mount helper

Record: UBUNTU-CVE-2025-66002
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Updated: 2026-11-02

OSVopenSUSE-SU-2026:10370-1 No score

smb4k-4.0.5-1.2 on GA media

These are all security issues fixed in the smb4k-4.0.5-1.2 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2026:10370-1
Updated: 2026-11-02

Affected products

https://github.com/kde/ smb4k

Affected packages

Affected packages
Package	Affected	Fixed
`smb4k` Debian:13	before 4.0.0-1+deb13u1, plus listed versions 4.0.0-1	4.0.0-1+deb13u1
`smb4k` Debian:14	before 4.0.5-1, plus listed versions 4.0.0-14.0.4-1	4.0.5-1
`smb4k` Debian:13 From an advisory covering 2 CVEs	before 4.0.0-1+deb13u1, plus listed versions 4.0.0-1	4.0.0-1+deb13u1
`smb4k` Ubuntu:16.04:LTS	All versions, plus listed versions 1.1.2-1	None known
`smb4k` Ubuntu:18.04:LTS	All versions, plus listed versions 2.0.1-12.0.2-12.1.0-1	None known
`smb4k` Ubuntu:20.04:LTS	All versions, plus listed versions 3.0.2-13.0.3-13.0.4-0ubuntu13.0.4-1	None known
`smb4k` Ubuntu:22.04:LTS	All versions, plus listed versions 3.1.1-13.1.2-0ubuntu1	None known
`smb4k` Ubuntu:24.04:LTS	All versions, plus listed versions 3.2.2-13.2.4-13.2.5-13.2.5-1build13.2.5-1build2	None known
`smb4k` Ubuntu:25.10	All versions, plus listed versions 4.0.0-14.0.4-1	None known
`smb4k` Ubuntu:26.10	All versions, plus listed versions 4.0.6-1	None known
`smb4k` Ubuntu:26.04:LTS	All versions, plus listed versions 4.0.4-14.0.5-14.0.5-1build14.0.6-1	None known
`smb4k` openSUSE:Tumbleweed From an advisory covering 2 CVEs	before 4.0.5-1.2	4.0.5-1.2

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-66002 is a medium vulnerability (CVSS 6.9) in Https://github.com/kde/ Smb4k, published January 1, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.16%, the 4th percentile. Fixed in smb4k 4.0.0-1+deb13u1.

References

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