CVE-2026-68878: Windows Fast FAT Driver Elevation of Privilege Vulnerability
Stack-based buffer overflow in Windows Fast FAT Driver allows an authorized attacker to elevate privileges over a network.
Other sources
Windows Fast FAT Driver Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Event History
Frequently Asked Questions
Which systems should be prioritized for assessment?
The affected software list includes Microsoft Windows 10, Windows 11, and Windows Server 2012, 2012 R2, 2016, 2019, 2022, and 2025. Prioritize supported systems in these product families where untrusted or lower-privileged users can log on or execute code.
What level of access does an attacker need?
The vector requires network access, low privileges, and user interaction. This is not described as unauthenticated exploitation; the attacker must already have low-privileged access and induce user interaction.
What is the potential impact if exploitation succeeds?
The vulnerability is classified as elevation of privilege and is rated high severity. The supplied vector indicates high impact to confidentiality, integrity, and availability.