CVE-2026-46571 Information disclosure in n/a

Medium 5.5 Published 7 Oct 2026 Updated 7 Oct 2026

An attacker can read confidential memory information by crafting a malicious NTFS image, affecting systems using NTFS-3G.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2026-46571?

CVE-2026-46571 is a medium-severity vulnerability in n/a, published on 7 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Weakness: CWE-125

Which versions are affected by CVE-2026-46571?

It affects 1 product.

Products include Tuxera Ntfs-3g.

How do I fix CVE-2026-46571?

Upgrade to a fixed version.

Is CVE-2026-46571 being exploited?

There is no known exploitation of CVE-2026-46571 in the wild and no public exploit code.

Sources

Also known as AZL-106878, DEBIAN-CVE-2026-46571, GHSA-52gr-j4pv-9pjh, UBUNTU-CVE-2026-46571.