CVE-2025-55696 HIGH

CVE-2025-55696: NtQueryInformation Token function (ntifs.h) Elevation of Privilege Vulnerability

Vendor Microsoft
Product Windows 10 Version 1809
Weakness CWE-367
Published October 14, 2025
Last update February 22, 2026
View on NVD All CVEs

CVSS base score

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

CVSS vector

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

What the vulnerability does

01Description

Time-of-check time-of-use (toctou) race condition in NtQueryInformation Token function (ntifs.h) allows an authorized attacker to elevate privileges locally.

Key dates

02Disclosure timeline

October 14, 2025 CVE published
February 22, 2026 Record updated