Use-after-free in Microsoft Windows and Windows Server - CVE-2026-55000
Published: July 15, 2026
Vulnerability identifier: #VU137738
CSH Severity: Low
CVSS v4: 5.4 [CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-55000
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in Windows USB Print Driver. An attacker with physical access can gain elevated privileges on the system.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2026-55000
Install updates from vendor's website.
Microsoft Windows - addressed in versions 11 24H2 10.0.26100.8875, 11 25H2 10.0.26200.8875, 11 26H1 10.0.28000.2269, 11 26H1 10.0.28000.2525
Windows Server - addressed in versions 2012 R2 6.3.9600.23291, 2025 10.0.26100.33158
Windows Server - addressed in versions 2012 R2 6.3.9600.23291, 2025 10.0.26100.33158