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MSRC compact vulnerability detail

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

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

Severity
Important
Impact
Elevation of Privilege
CVSS
7.8 base · 6.8 temporal
Release
2025-10-14
Signals
NtQueryInformation Token function (ntifs.h) Elevation of Privilege Exploited: No Publicly disclosed: No Exploitability: Exploitation Unlikely
CWE
CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition CWE-822: Untrusted Pointer Dereference
Patch Diff
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Resolved binary override
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Description
Time-of-check time-of-use (toctou) race condition in NtQueryInformation Token function (ntifs.h) allows an authorized attacker to elevate privileges locally.
FAQ / Articles
NtQueryInformation Token function (ntifs.h) Elevation of Privilege Vulnerability
Time-of-check time-of-use (toctou) race condition in NtQueryInformation Token function (ntifs.h) allows an authorized attacker to elevate privileges locally.
FAQ
What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
NtQueryInformation Token function (ntifs.h) Elevation of Privilege Vulnerability
Time-of-check time-of-use (toctou) race condition in NtQueryInformation Token function (ntifs.h) allows an authorized attacker to elevate privileges locally.