Description
In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_ib_copy_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 extending a directory, e.g., by creating a file.
Published: 2026-10-07
Score: 7.7 High
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

No solution or workaround provided in the CVE record.

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Tracking

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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
History

Fri, 09 Oct 2026 02:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 08 Oct 2026 23:45:00 +0000

Type Values Removed Values Added
Title Heap Buffer Overflow in ntfs-3g SUID-Root Binary Allows Privilege Escalation

Thu, 08 Oct 2026 22:45:00 +0000

Type Values Removed Values Added
Title Heap Buffer Overflow in NTFS-3G Affects SUID-Root Binary
Weaknesses CWE-122

Thu, 08 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-787
CPEs cpe:2.3:a:tuxera:ntfs-3g:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H'}


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

Type Values Removed Values Added
Title Heap Buffer Overflow in NTFS-3G Affects SUID-Root Binary
First Time appeared Tuxera
Tuxera ntfs-3g
Weaknesses CWE-122
Vendors & Products Tuxera
Tuxera ntfs-3g

Wed, 07 Oct 2026 14:15:00 +0000

Type Values Removed Values Added
Description In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_ib_copy_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 extending a directory, e.g., by creating a file.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-09T01:58:03.574Z

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

Link: CVE-2026-46569

cve-icon Vulnrichment

Updated: 2026-10-09T01:57:58.749Z

cve-icon NVD

Status : Modified

Published: 2026-10-07T14:17:10.833

Modified: 2026-10-09T02:17:03.633

Link: CVE-2026-46569

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-08T23:30:12Z

Weaknesses