CVE-2026-42617

Published: Oct 7, 2026Modified: Oct 8, 2026

7.1

Vector

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

Exploitability: 1.8 / Impact: 5.2

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_ir_to_ib() in 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.

Affected (1)

Products: Tuxera: Ntfs 3g

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Tuxera Ntfs 3g	version < 2026.7.7

Related CWEs

Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

References (2)

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

Source: cve@mitre.org

Release Notes

https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-jv65-qqf7-f692

Source: cve@mitre.org

PatchVendor Advisory

Timeline

No history available yet.