---
id: CVE-2026-46571
title: >-
  In NTFS-3G before 2026.7.7, a out-of-bounds read exists in
  ntfs_fix_file_name() in libntfs-3g/reparse.c that allows an attacker to read
  possibly confidential information in ntfs-3g process memory by crafting a
  malicious NTFS image
summary: >-
  In NTFS-3G before 2026.7.7, a out-of-bounds read exists in
  ntfs_fix_file_name() in libntfs-3g/reparse.c that allows an attacker to read
  possibly confidential information in ntfs-3g process memory by crafting a
  malicious NTFS image. The o…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-125
published: '2026-10-07'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T15:17:21.163'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-46571'
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-52gr-j4pv-9pjh'
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-07T14:19:35.364361Z'
ingestedAt: '2026-10-07T14:33:21.956Z'
---

## Overview

In NTFS-3G before 2026.7.7, a out-of-bounds read exists in ntfs_fix_file_name() in libntfs-3g/reparse.c that allows an attacker to read possibly confidential information in ntfs-3g process memory by crafting a malicious NTFS image. The out-of-bounds read is triggered by a readlink on a corrupted file.

## Remediation

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