CVE-2026-56135

In NTFS-3G through 2026.2.25, a heap-based buffer overflow exists in the function build_inherited_id() in libntfs-3g/security.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 creating a file in a crafted directory.

CVSS 3.1

7.4CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 3% of CVEs (scores of 2026-10-25)

CWE

CWE-122

Published

2026-08-24

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• tuxera:ntfs-3g

References

• https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-c9qg-fh4v-mq8r

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