CVE-2025-49721 HIGH

CVE-2025-49721: Windows Fast FAT File System Driver Elevation of Privilege Vulnerability

Vendor Microsoft
Product Windows 10 Version 1507
Weakness CWE-122
Published July 8, 2025
Last update February 13, 2026
View on NVD All CVEs

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

What the vulnerability does

01Description

Heap-based buffer overflow in Windows Fast FAT Driver allows an unauthorized attacker to elevate privileges locally.

Key dates

02Disclosure timeline

July 8, 2025 CVE published
February 13, 2026 Record updated