Heap-based Buffer Overflow Affecting tuxera/ntfs-3g package, versions [,2026.2.25)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published3 May 2026
- disclosed22 Apr 2026
- creditUnknown
Introduced: 22 Apr 2026
NewCVE-2026-40706 (opens in a new tab)How to fix?
Upgrade tuxera/ntfs-3g to version 2026.2.25 or higher.
Overview
Affected versions of this package are vulnerable to Heap-based Buffer Overflow in the ntfs_build_permissions_posix function. An attacker can corrupt heap memory and potentially execute arbitrary code or escalate privileges by providing a crafted NTFS image containing a security descriptor with multiple ACCESS_DENIED ACEs that include WRITE_OWNER from different group SIDs. This is only exploitable if the SUID-root binary is used to process a malicious NTFS image.