Vulnerability · Published Jan 8, 2026 · Assigned by suse
CVE-2025-66002Local users can perform arbitrary unmounts via smb4k mount helper due to lack of input validation
Medium 6.9
In plain English
A medium-severity argument injection in smb4k from https://github.com/KDE/. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)6.9Medium
Exploit odds (30 days)0.2%top 95.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability allows local users ton perform arbitrary unmounts via smb4k mount helper
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:13 | smb4k | 4.0.0-1+deb13u1 | DEBIAN-CVE-2025-66002 |
| Debian:13 | smb4k | 4.0.0-1+deb13u1 | DSA-6092-1 |
| Debian:14 | smb4k | 4.0.5-1 | DEBIAN-CVE-2025-66002 |
| Ubuntu:22.04:LTS | smb4k | no fix listed | UBUNTU-CVE-2025-66002 |
| Ubuntu:24.04:LTS | smb4k | no fix listed | UBUNTU-CVE-2025-66002 |
| Ubuntu:25.10 | smb4k | no fix listed | UBUNTU-CVE-2025-66002 |
| Ubuntu:26.04:LTS | smb4k | no fix listed | UBUNTU-CVE-2025-66002 |
| Ubuntu:26.10 | smb4k | no fix listed | UBUNTU-CVE-2025-66002 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| https://github.com/KDE/ | smb4k | ? – before 4.0.5 |
Weakness: CWE-88 · Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N