Executive brief
Windows NTFS is the file system used by all modern Microsoft operating systems to manage storage and data access. A heap-based buffer overflow in NTFS allows an authenticated attacker to execute code with elevated privileges, potentially compromising the entire system and accessing sensitive data stored on affected machines.
Technical details
A heap-based buffer overflow vulnerability exists in the Windows NTFS file system driver. The vulnerability requires network access and authenticated user privileges to exploit. An attacker can send specially crafted network requests to trigger the overflow, leading to arbitrary code execution with system-level privileges. This permits complete system compromise, including data exfiltration and lateral movement within a network. A patch has been released by Microsoft addressing this vulnerability.
Affected products
- Microsoft Windows <UNKNOWN>
Timeline
- 2026-09-08: disclosed