---
id: CVE-2026-46570
title: >-
  In NTFS-3G before 2026.7.7, a heap buffer overflow exists in
  ntfs_index_walk_down() 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
summary: >-
  In NTFS-3G before 2026.7.7, a heap buffer overflow exists in
  ntfs_index_walk_down() 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 …
severity: none
published: '2026-10-07'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T15:17:21.010'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-46570'
references:
  - url: 'https://github.com/tuxera/ntfs-3g/releases#release-2026.7.7'
    label: cve@mitre.org
  - url: 'https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-m6qq-pv5j-2wxc'
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-07T14:33:21.962Z'
---

## Overview

In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_index_walk_down() 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 reading the special crafted file metadata.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.