Use-after-free in Windows Server - CVE-2026-34332
Published: May 13, 2026
Vulnerability identifier: #VU131304
CSH Severity: Medium
CVSS v4: 8.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-34332
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in Windows Kernel-Mode Driver. A remote user can execute arbitrary code on the target system.
Affected software
Windows Server
How to mitigate CVE-2026-34332
Install updates from vendor's website.
Windows Server - addressed in versions 2025 10.0.26100.32772, 2025 10.0.26100.32860