Heap-based buffer overflow in NTFS-3G - CVE-2026-40706
Published: April 28, 2026
Vulnerability identifier: #VU128272
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-40706
CWE-ID: CWE-122
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Tuxera
Affected software:
NTFS-3G
NTFS-3G
Detailed vulnerability description
The vulnerability allows a local user to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in ntfs_build_permissions_posix(). A local user can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2026-40706
Install updates from vendor's website.