In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_ir_to_ib() in index.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 by extending a directory, e.g., by creating a file.
CVSS Details
- CVSS 3.1 Base Score: 7.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade ntfs-3g | Jul 23, 2026 | Jul 23, 2026 |
| Gentoo Linux | — | Upgrade sys-fs/ntfs3g. | Aug 16, 2026 | Aug 16, 2026 |
| Ubuntu | — | Upgrade libntfs-3g89Upgrade libntfs-3g89t64Upgrade ntfs-3g | Jul 20, 2026 | Jul 16, 2026 |
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