Is CVE-2026-46570 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-46570?

CVE-2026-46570 has a CVSS v3 severity of HIGH (8.1).

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CVE-2026-46570

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.