Use-after-free in Windows Server - CVE-2026-44805
Published: June 11, 2026
Vulnerability identifier: #VU134326
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-44805
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in Windows Network Controller (NC) Host Agent. A local user can perform a denial of service (DoS) attack.
Affected software
Windows Server
How to mitigate CVE-2026-44805
Install updates from vendor's website.
Windows Server - addressed in versions 2019 10.0.17763.8880, 2022 10.0.20348.5256, 2025 10.0.26100.8655, 2025 10.0.26100.32995