Description
Use after free in Windows Network Controller (NC) Host Agent allows an authorized attacker to deny service locally.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Windows Server 2019 | 10.0.17763.0 – < 10.0.17763.8880 | 10.0.17763.8880 |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 – < 10.0.17763.8880 | 10.0.17763.8880 |
| Microsoft | Windows Server 2022 | 10.0.20348.0 – < 10.0.20348.5256 | 10.0.20348.5256 |
| Microsoft | Windows Server 2025 | 10.0.26100.0 – < 10.0.26100.32995 | 10.0.26100.32995 |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 – < 10.0.26100.32995 | 10.0.26100.32995 |
Advisories 3
- WID-SEC-2026-1849 Microsoft Windows: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 17, 2026
- NCSC-2026-0181 Kwetsbaarheden verholpen in Microsoft Windows NCSC-NL (Netherlands) · Jun 9, 2026
- MSRC-CVE-2026-44805 Windows Network Controller (NC) Host Agent Denial of Service Vulnerability Microsoft Security Response Center · Jun 9, 2026
References
- Windows Network Controller (NC) Host Agent Denial of Service Vulnerability vendor-advisory patch