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

Published Oct 14, 2025
·
Updated

NtQueryInformation Token function (ntifs.h) Elevation of Privilege Vulnerability

Other sources

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

Microsoft

Affected Software

35 affected componentsFixes available
Microsoft Windows 11=24H2
Microsoft Windows 11=23H2
Microsoft Windows Server 2025
Microsoft Windows 11=24H2
Microsoft Windows 11=25H2
Microsoft Windows 11=25H2
Microsoft Windows 11=23H2
Microsoft Windows 10=22H2
Microsoft Windows 11=22H2
Microsoft Windows 10=22H2
Microsoft Windows Server 2025
Microsoft Windows Server 2022, 23H2 Edition
Microsoft Windows 11=22H2
Microsoft Windows 10=22H2
Microsoft Windows 10=21H2
Microsoft Windows 10=21H2
Microsoft Windows 10=21H2
Microsoft Windows Server 2022
Microsoft Windows Server 2019
Microsoft Windows 10=1809
Microsoft Windows Server 2022
Microsoft Windows Server 2019
Microsoft Windows 10=1809
Microsoft Windows 10 1809<10.0.17763.7919
Microsoft Windows 10 1809<10.0.17763.7919
Microsoft Windows 10 21h2<10.0.19044.6456
Microsoft Windows 10 22h2<10.0.19045.6456
Microsoft Windows 11 22h2<10.0.22621.6060
Microsoft Windows 11 23h2<=10.0.22631.6060
Microsoft Windows 11 24h2<10.0.26100.6899
Microsoft Windows 11 25h2<10.0.26200.6899
Microsoft Windows Server 2019<10.0.17763.7919
Microsoft Windows Server 2022<10.0.20348.4294
Microsoft Windows Server 2022 23h2<10.0.25398.1913
Microsoft Windows Server 2025<=10.0.26100.6899

Event History

Oct 14, 2025
CVE Published
via Microsoft·07:00 AM
Data Sourced
via Microsoft·07:00 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:01 PM
Data Sourced
via MITRE·05:01 PM
DescriptionSeverity
Data Sourced
via NVD·05:15 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2025-55696?

The severity of CVE-2025-55696 is rated as critical due to its potential to enable an elevation of privilege for attackers.

2

How do I fix CVE-2025-55696?

To fix CVE-2025-55696, ensure you install the latest security updates from Microsoft for the affected product versions.

3

Which systems are affected by CVE-2025-55696?

CVE-2025-55696 affects multiple versions of Windows 10, Windows 11, and Windows Server products.

4

What type of vulnerability is CVE-2025-55696?

CVE-2025-55696 is an elevation of privilege vulnerability caused by a time-of-check time-of-use (TOCTOU) race condition.

5

Can CVE-2025-55696 be exploited remotely?

CVE-2025-55696 cannot be exploited remotely; it requires local access to the affected system.

Contact

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