Skip to content
Fencer Vulns
medium 6.9

CVE-2025-66002 json

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

published 2026-01-08 10 mo ago modified 2026-10-11 28 d ago also EUVD-2026-1563

cvss
6.9
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 4%
public exploits
0
none known

Summary

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

Patch / fix

  • https://github.com/KDE/ smb4k 4.0.5
  • smb4k Debian 13 4.0.0-1+deb13u1
  • smb4k Debian 14 4.0.5-1

debian advisories DEBIAN-CVE-2025-66002

  • smb4k openSUSE Tumbleweed 4.0.5-1.2

opensuse advisories openSUSE-SU-2026:10370-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-66002 updated cvss 7.1

smb4k: SMB4K Arbitrary Mount

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
10 mo ago

Exploit prediction

0.16% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 6.9 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
CNA 4.0 6.9 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/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

Affected products

  • https://github.com/KDE/ smb4k

Classification

Weakness
  • CWE-88 Improper Neutralization of Argument Delimiters in a Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.