CVE-2026-96939: microsoft windows_11_23h2

Vulnerability summary

CVE-2026-96939 is a high (CVSS 7.0) vulnerability in microsoft windows_11_23h2. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.3% of scored vulnerabilities.

Timeline

1. 13-10-2026
   PublishedVulnerability first disclosed.
2. 19-10-2026
   Last modifiedVulnerability information updated.

Description

Time-of-check time-of-use (toctou) race condition in Servicing Stack Updates allows an authorized attacker to elevate privileges locally.

• CWE-367Time-of-check Time-of-use (TOCTOU) Race ConditionThe product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.