CVE-2025-66002: https://github.com/KDE/ smb4k · Argument Injection
Affects https://github.com/KDE/ smb4kSource CVE Database V5
Not known to be exploited · CVSS 6.9 Medium : upgrade to 4.0.5 when convenient.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 4.0.5
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 8 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade https://github.com/KDE/ smb4k to 4.0.5.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| https://github.com/KDE/smb4k | Affected
| Fixed in
|
AI-suggested
- Restrict local user permissions to limit who can execute smb4k and its mount helper, ensuring only trusted users have access.
- Employ Linux security modules (e.g., AppArmor, SELinux) to confine smb4k mount helper execution and prevent unauthorized argument injection.
- Monitor system logs for unusual unmount commands or smb4k usage patterns indicative of exploitation attempts.
- Disable or remove smb4k on systems where it is not essential to reduce the attack surface.
- Once patches or updates are released by KDE, prioritize their deployment across all affected systems.
- Educate local users about the risks of executing untrusted commands and enforce strict user account management.
- Consider implementing multi-factor authentication or session restrictions on multi-user systems to reduce the risk of local privilege abuse.
- Conduct regular audits of SMB share mounts and unmounts to detect anomalies early.
Description
An Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability allows local users ton perform arbitrary unmounts via smb4k mount helper