medium6.1
CVE-2026-118384
GNU mtools through 4.0.49 has an out-of-bounds write in parse_vses in vfat.c.
Impact
GNU mtools before 4.0.50 has an out-of-bounds write in parse_vses in vfat.c.
Affected products
| Product | Affected versions |
|---|---|
| GNU Mtools | through 4.0.49 |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-9h57-5h59-g528
- https://nvd.nist.gov/vuln/detail/CVE-2026-118384
- https://ftp.gnu.org/gnu/mtools/mtools-4.0.49.tar.gz
- https://github.com/deepin-community/mtools/blob/16d295331a1cfbcf02ad0b2f03c9b906197cf3ee/vfat.c#L399
- https://github.com/deepin-community/mtools/blob/16d295331a1cfbcf02ad0b2f03c9b906197cf3ee/vfat.c#L444-L445
- https://lists.gnu.org/archive/html/info-gnu/2025-06/msg00004.html
- http://www.openwall.com/lists/oss-security/2026/10/31/1
- https://lists.gnu.org/archive/html/info-mtools/2026-10/msg00001.html
- https://lists.gnu.org/archive/html/info-mtools/2026-10/msg00002.html
- https://lists.gnu.org/archive/html/info-mtools/2026-10/msg00004.html