PT-2025-42046 · Microsoft · Windows

Published 2025-10-14 · Updated 2025-10-14 · CVE-2025-55696

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Windows (affected versions not specified)

Description A time-of-check time-of-use (TOCTOU) race condition exists in the NtQueryInformationToken function within ntifs.h. This condition allows a locally authorized attacker to elevate privileges. The issue involves a timing vulnerability where the system state changes between the time a check is performed and the time the result of that check is used. This can lead to unintended consequences, such as granting higher privileges than intended.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Time Of Check To Time Of Use

Untrusted Pointer Dereference

Weakness Enumeration

CWE-367

CWE-822

Related Identifiers

BDU:2025-13276

CVE-2025-55696

Affected Products

Windows

References · 7

• https://bdu.fstec.ru/vul/2025-13276 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-55696 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55696 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-55696 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-55696 · Security Note
• https://osv.dev/vulnerability/CVE-2025-55696 · Vendor Advisory
• https://twitter.com/CVEnew/status/1978171209872556495 · Twitter Post