CVE-2026-42617
High
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.
SeverityHigh
CVSS7.1
Exploit probability—
ProductTuxera Ntfs-3g
PublishedOct 7, 2026
First seenOct 7, 2026
Weakness typeCWE-122CWE-122
How to fix
Update
- tuxera ntfs-3g2026.7.7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| tuxera ntfs-3g | v < 2026.7.7 | 2026.7.7 |
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