MTools Mformat before 3.9.9, when installed setuid root, creates files with…
Priority LOW 18Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
MTools Mformat before 3.9.9, when installed setuid root, creates files with world-readable and world-writable permissions, which allows local users to read and overwrite files.
Why it matters now
EPSS 0.00631 50th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mtools:mformat:3.9.1:*:*:*:*:*:*:* | 3.9.1 | Vulnerable | Mtools |
| cpe:2.3:a:mtools:mformat:3.9.2:*:*:*:*:*:*:* | 3.9.2 | Vulnerable | Mtools |
| cpe:2.3:a:mtools:mformat:3.9.3:*:*:*:*:*:*:* | 3.9.3 | Vulnerable | Mtools |
| cpe:2.3:a:mtools:mformat:3.9.4:*:*:*:*:*:*:* | 3.9.4 | Vulnerable | Mtools |
| cpe:2.3:a:mtools:mformat:3.9.5:*:*:*:*:*:*:* | 3.9.5 | Vulnerable | Mtools |
| cpe:2.3:a:mtools:mformat:3.9.6:*:*:*:*:*:*:* | 3.9.6 | Vulnerable | Mtools |
| cpe:2.3:a:mtools:mformat:3.9.7:*:*:*:*:*:*:* | 3.9.7 | Vulnerable | Mtools |
| cpe:2.3:a:mtools:mformat:3.9.8:*:*:*:*:*:*:* | 3.9.8 | Vulnerable | Mtools |
| cpe:2.3:a:mtools:mformat:3.9.9:*:*:*:*:*:*:* | 3.9.9 | Vulnerable | Mtools |
- cpe:2.3:a:mtools:mformat:3.9.1:*:*:*:*:*:*:* Versions 3.9.1 Vulnerable ·Mtools
- cpe:2.3:a:mtools:mformat:3.9.2:*:*:*:*:*:*:* Versions 3.9.2 Vulnerable ·Mtools
- cpe:2.3:a:mtools:mformat:3.9.3:*:*:*:*:*:*:* Versions 3.9.3 Vulnerable ·Mtools
- cpe:2.3:a:mtools:mformat:3.9.4:*:*:*:*:*:*:* Versions 3.9.4 Vulnerable ·Mtools
- cpe:2.3:a:mtools:mformat:3.9.5:*:*:*:*:*:*:* Versions 3.9.5 Vulnerable ·Mtools
- cpe:2.3:a:mtools:mformat:3.9.6:*:*:*:*:*:*:* Versions 3.9.6 Vulnerable ·Mtools
- cpe:2.3:a:mtools:mformat:3.9.7:*:*:*:*:*:*:* Versions 3.9.7 Vulnerable ·Mtools
- cpe:2.3:a:mtools:mformat:3.9.8:*:*:*:*:*:*:* Versions 3.9.8 Vulnerable ·Mtools
- cpe:2.3:a:mtools:mformat:3.9.9:*:*:*:*:*:*:* Versions 3.9.9 Vulnerable ·Mtools
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2004-2303
- 2026-10-03 Alias added: GHSA-5hvr-27m8-r592
- 2026-10-27 EPSS moved to the 50th–90th percentile
References
Patch 1
Sources
- CVE-2004-2303 · CVE Program
- CVE-2004-2303 · NVD
- FIRST EPSS
- GHSA-5hvr-27m8-r592 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences