Time-of-check Time-of-use (TOCTOU) Race Condition in Microsoft Windows - CVE-2026-105562
Published: November 10, 2026
Vulnerability identifier: #VU164682
CSH Severity: Low
CVSS v4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-105562
CWE-ID: CWE-367
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to disclose sensitive information stored in a protected virtual disk.
The vulnerability exists due to a time-of-check time-of-use (TOCTOU) race condition in Windows Container Manager Service when checking and subsequently accessing protected resources. A local user can win a race condition to read information stored in a protected virtual disk without authorization.
Affected software
Microsoft Windows
How to mitigate CVE-2026-105562
Install security update from vendor's website.
Microsoft Windows - addressed in versions 10 21H2 10.0.19044.7846, 10 22H2 10.0.19045.7846, 11 23H2 10.0.22631.7711, 11 24H2 10.0.26100.9911, 11 24H2 10.0.26100.9974, 11 25H2 10.0.26200.9911, 11 25H2 10.0.26200.9974, 11 26H1 10.0.28000.3501