CVE-2026-46569 Memory corruption in n/a
A heap buffer overflow in NTFS-3G allows attackers to execute arbitrary code with root privileges via a malicious NTFS image.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-46569?
CVE-2026-46569 is a high-severity memory corruption 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 heap buffer overflow exists in ntfs_ib_copy_tail(), 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 extending a directory, e.g., by creating a file.
Which versions are affected by CVE-2026-46569?
It affects 1 product.
Products include Tuxera Ntfs-3g.
How do I fix CVE-2026-46569?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-46569 being exploited?
There is no known exploitation of CVE-2026-46569 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as AZL-106872, DEBIAN-CVE-2026-46569, GHSA-xxv8-9r24-hcj9, UBUNTU-CVE-2026-46569.