MinorCritical vulnerability

CVE-2026-42617 (CVSS 7.1)

NVD · officialPublished Oct 7, 2026Risk 23/100

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.

Technical details

CVSS

7.1

AV:LocalAC:LowPR:LowUI:NoneC:NoneI:HighA:High

Evidence and sources

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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