CVE-2026-96853

What it is

Time-of-check time-of-use (toctou) race condition in Windows Win32 Kernel Subsystem allows an authorized attacker to disclose information locally.

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account. High risk of data exposure.

Exploit odds

0.2% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-10-13 19:21 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-10-20 00:33 UTC Last updatedMost recent change to the record

Details

Published

2026-10-13 19:21 UTC

Last modified

2026-10-20 00:33 UTC

Exploit probability

0.2% · EPSS, next 30 days

Weakness

CWE-367

Record status

Analyzed

Affected

• Microsoft Windows 10 1607 < 10.0.14393.9612
• Microsoft Windows 10 1809 < 10.0.17763.9376
• Microsoft Windows 10 21h2 < 10.0.19044.7807
• Microsoft Windows 10 22h2 < 10.0.19045.7807
• Microsoft Windows 11 23h2 < 10.0.22631.7652
• Microsoft Windows 11 24h2 < 10.0.26100.9711
• Microsoft Windows 11 25h2 < 10.0.26200.9711
• Microsoft Windows 11 26h1 < 10.0.28000.3231

Attack profile CVSS 3.1 · 4.7

Attack vector

Local

Complexity

High

Privileges needed

Low

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None