CVE-2026-46570

high

Description

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.

References

https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-m6qq-pv5j-2wxc

https://github.com/tuxera/ntfs-3g/releases#release-2026.7.7

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-94377

Details

Source: Mitre, NVD

Published: 2026-10-07

Updated: 2026-10-07

Risk Information

CVSS v2

Base Score: 6.2

Vector: CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 8.1

Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Severity: High