In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_ib_cut_tail() in libntfs-3g/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 creating a file in a specially crafted directory.

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-6389-1 ntfs-3g security update
Ubuntu USN Ubuntu USN USN-8554-1 NTFS-3G vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 07 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-122
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Wed, 07 Oct 2026 18:15:00 +0000

Type Values Removed Values Added
Title Heap Buffer Overflow in NTFS-3G SUID Binary Enables Root Privilege Escalation
Weaknesses CWE-119

Wed, 07 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Tuxera
Tuxera ntfs-3g
Vendors & Products Tuxera
Tuxera ntfs-3g

Wed, 07 Oct 2026 14:00:00 +0000

Type Values Removed Values Added
Description In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_ib_cut_tail() in libntfs-3g/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 creating a file in a specially crafted directory.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-07T18:44:30.920Z

Reserved: 2026-05-15T00:00:00.000Z

Link: CVE-2026-46572

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-10-07T14:17:11.470

Modified: 2026-10-07T19:17:37.393

Link: CVE-2026-46572

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-07T18:00:19Z

Weaknesses