Tuxera NTFS-3G
At a glance
- Source
- NVD
- EPSS
- EPSS 0.17 % · percentile 6 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mitre
- NVD status
- Awaiting Analysis
Description
In NTFS-3G 2022.10.3 before 2026.2.25, a heap buffer overflow exists in ntfs_build_permissions_posix() in acls.c that allows an attacker to corrupt heap memory in the SUID-root ntfs-3g binary by crafting a malicious NTFS image. The overflow is triggered on the READ path (stat, readdir, open) when processing a security descriptor with multiple ACCESS_DENIED ACEs containing WRITE_OWNER from distinct group SIDs.
Weaknesses (CWE)
- CWE-122 — Heap-based Buffer Overflow
References
- https://github.com/tuxera/ntfs-3g/blob/d3ace19838ce37cfde55294e76841e6d2f393f9e/libntfs-3g/acls.c#L4011-L4027
- https://www.openwall.com/lists/oss-security/2026/04/21/4
- https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-4cwv-5285-63v9
- https://github.com/tuxera/ntfs-3g/releases/tag/2026.2.25
- https://lists.debian.org/debian-lts-announce/2026/04/msg00024.html
- http://www.openwall.com/lists/oss-security/2026/04/21/4
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | mitre |
| CVSS 3.1 | HIGH 8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · cve@mitre.org (Secondary) |
European references
- ENISA EUVD · EUVD-2026-24467
- GCVE · GCVE-0-2026-40706
CERT-FR advisories
- CERTFR-2026-AVI-0486 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Tuxera · NTFS-3G | affected 2022.10.3 < 2026.2.25 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |