Medium severity · published Jan 8, 2026
CVE-2025-66002
Local users can perform arbitrary unmounts via smb4k mount helper due to lack of input validation
6.9
CVSS
0.2%
EPSS
No
On KEV
Description
An Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability allows local users ton perform arbitrary unmounts via smb4k mount helper
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SM
smb4k · https://github.com/KDE/
? before 4.0.5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-66002
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-66002
bugzilla.suse.com
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2025-66002
security.opensuse.org
https://security.opensuse.org/2025/12/10/smb4k-major-issues-in-kauth-helper.html
More from smb4k
7.3
CVE-2025-66003
Local users can perform a local root exploit via smb4k mounthelper