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Windows Server 2025 update screen showing security patch installation

ResolvedWindows Server 2025 Standard

Microsoft Ships KB5094125 to Patch Five Windows Server 2025 Flaws

Microsoft's June 2026 security update KB5094125 patches five vulnerabilities in Windows Server 2025, including a critical unauthenticated Remote Desktop Services RCE (CVE-2026-0235) and a Hyper-V guest-to-host escape (CVE-2026-0237). The update raises the OS build to 26100.32995 and applies to all editions across full GUI and Server Core installations.

Jun 10, 20265 min read

Windows Server 2022 update installation screen showing security patch progress

ResolvedWindows Server 2022 Standard

Microsoft Ships KB5087545, Fixing Five Critical Windows Server 2022 Flaws

Microsoft released KB5087545 for Windows Server 2022 on May 12, 2026, patching five critical vulnerabilities including an unauthenticated RDP remote code execution flaw (CVE-2026-0145, CVSS 9.8) and a Hyper-V guest-to-host escape. The cumulative update raises the OS build to 20348.5139 and carries several known post-install issues.

May 13, 20265 min read