CVE-2026-42618: Tuxera Ntfs-3g

High severity, CVSS 7.1. EPSS: 0.1% chance of exploitation in the next 30 days.

In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_decompress() in compress.c that allows an attacker to corrupt one byte of 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.

Affected products

• Tuxera Ntfs-3g: before 2026.7.7 (fixed in 2026.7.7)

Published 2026-10-07. Last modified 2026-10-08.