CVE-2026-44805: Windows Network Controller (NC) Host Agent Denial of Service Vulnerability
Overview
- Severity
- Medium (CVSS 5.5)
- CVSS Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
- Category
- Denial of Service
- Exploit Status
- Not Exploited
- Exploitation Likelihood
- Unlikely
- Patch Tuesday
- 2026-Jun
- Released
- 2026-06-09
Description
Use after free in Windows Network Controller (NC) Host Agent allows an authorized attacker to deny service locally.
Affected Products (6)
Windows
- Windows Server 2019
- Windows Server 2019 (Server Core installation)
- Windows Server 2022
- Windows Server 2022 (Server Core installation)
- Windows Server 2025 (Server Core installation)
- Windows Server 2025
Security Updates (3)
Acknowledgments
Microsoft, Microsoft
Revision History
- 2026-06-09: Information published.