CVE catalog
CVE-2025-66003
smb4k: CVE-2025-66003
- Severity
- High · CVSS 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.12% · Oct 25, 2026
An External Control of File Name or Path vulnerability in smb4k allowsl ocal users to perform a local root exploit via smb4k mounthelper if they can access and control the contents of a Samba share Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references. The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | smb4k | bookworm | Not reported | vulnerable |
| Debian | smb4k | 13 | 4.0.0-1 | vulnerable |
| Debian | smb4k | 13 | 4.0.0-1+deb13u1 | fixed |
| Debian | smb4k | 14 | 4.0.0-1 | vulnerable |
| Debian | smb4k | 14 | 4.0.4-1 | vulnerable |
| Debian | smb4k | 14 | 4.0.5-1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | smb4k | deb | 13 | 4.0.0-1+deb13u1 | Not reported | DEBIAN-CVE-2025-66003 | Not reported |
| Debian | smb4k | deb | 14 | 4.0.5-1 | Not reported | DEBIAN-CVE-2025-66003 | Not reported |
OpenFactory catalog packages
[Debian 13 (Trixie)]
- [smb4k]Fixed
Details (4)
4.0.0-1+deb13u1· amd64 · trixieFixed · Fixed:
4.0.0-1+deb13u1dsa · smb4k · debian · 13
4.0.0-1+deb13u1· arm64 · trixieFixed · Fixed:
4.0.0-1+deb13u1dsa · smb4k · debian · 13
4.0.0-1+deb13u1· amd64 · trixie-securityFixed · Fixed:
4.0.0-1+deb13u1dsa · smb4k · debian · 13
4.0.0-1+deb13u1· arm64 · trixie-securityFixed · Fixed:
4.0.0-1+deb13u1dsa · smb4k · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2025-66003]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2025-66003]
- [https://security-tracker.debian.org/tracker/CVE-2025-66003]
- [https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-66003.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]