Use-after-free in Microsoft Windows and Windows Server - CVE-2026-69388
Published: September 8, 2026
Vulnerability identifier: #VU147651
CSH Severity: Low
CVSS v4: 7.3 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-69388
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to elevate privileges.
The vulnerability exists due to use-after-free in the Windows Bluetooth Service when winning a race condition. A local user can win a race condition to elevate privileges.
Successful exploitation can elevate privileges from Medium Integrity Level to Local Service or SYSTEM.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2026-69388
Install security update from vendor's website.
Microsoft Windows - addressed in versions 10 21H2 10.0.19044.7725, 10 22H2 10.0.19045.7725, 10 1809 10.0.17763.9245, 11 23H2 10.0.22631.7582, 11 24H2 10.0.26100.9445, 11 25H2 10.0.26200.9445, 11 26H1 10.0.28000.2954
Windows Server - addressed in versions 2019 10.0.17763.9245, 2022 10.0.20348.5622, 2025 10.0.26100.33438
Windows Server - addressed in versions 2019 10.0.17763.9245, 2022 10.0.20348.5622, 2025 10.0.26100.33438