Double free in Microsoft Windows and Windows Server - CVE-2026-32219

 

Double free in Microsoft Windows and Windows Server - CVE-2026-32219

Published: April 14, 2026


Vulnerability identifier: #VU126017
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-2026-32219
CWE-ID: CWE-415
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in Microsoft Brokering File System. A local user can win a race condition and gain elevated privileges on the target system.


Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2026-32219

Install updates from vendor's website.

Microsoft Windows - addressed in versions 10 1607 10.0.14393.9060, 11 24H2 10.0.26100.32690
Windows Server - addressed in versions 2012 R2 6.3.9600.23132, 2025 10.0.26100.32690

External References

Related Security Bulletins