Windows Server 2019 — KB5065509 — multiple vulnerabilities (20 CVEs) — patch and remediation guide
🔴 Critical ⏱ 15–90 min Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read • Source: Microsoft KB5065509 • MSRC update-guide entry Related CVEs: CVE-2025-54918 CVE-2025-55226 CVE-2025-53799 CVE-2025-53797 CVE-2025-53798 CVE-2025-54095 CVE-2025-54096 CVE-2025-54097 +12 more Affected components: Windows Server 2019 (Server Core installation) Microsoft summary: Improper authentication in Windows NTLM […]