CVE-2026-46569CWE-122CWE-787

CVE-2026-46569

High · published October 7, 2026

CVSS v3.1
7.7
EPSS
0%
Percentile
4.8
In the wild
Unconfirmed
What it is

In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_ib_copy_tail(), 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 extending a directory, e.g., by creating a file.

The record
Technical detail
CVSS v3.1
7.7 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00160 · 4.8th percentile
Weaknesses
CWE-122 · Heap-based Buffer Overflow; CWE-787 · Out-of-bounds Write
Published
2026-10-07T18:17Z
Affected products (1)
ProductVersionsFixed in
tuxera/ntfs-3g< 2026.7.72026.7.7
References (2)
https://github.com/tuxera/ntfs-3g/releases#release-2026.7.7 · [email protected]https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-xxv8-9r24-hcj9 · [email protected]
EPSS history
Timeline
  • 09 OCT 03:29Z
    EPSS moved — → 0%
    epss
  • 07 OCT 00:00Z
    In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_ib_copy_tail(), in libntfs-3g/index.c, that allows an attacker to corrupt heap memory in the…
    cvelistv5