Home/CVE/Time-of-check time-of-use (toctou) race condition in NtQueryInformation Token function (ntifs.h) allows an authorized at
CVE

CVE-2025-55696

Time-of-check time-of-use (toctou) race condition in NtQueryInformation Token function (ntifs.h) allows an authorized at

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

HIGH · CVSS 7.8 EPSS 0.00034
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-367Time-of-check Time-of-use (TOCTOU) Race Condition
CWE-822Untrusted Pointer Dereference
▤

Affected Products & Versions

11
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
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 Oct 2025 · 05:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

1
msrcCVE-2025-55696Elevation of Privilege
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