Windows Server 2025 build 26100.32995 (KB5094125) — release notes, downloads, known issues

Windows Server · 2025 · Release · Security update (Patch Tuesday)

Windows Server 2025 (26100.32995)

Release
KB5094125 — Microsoft's article, opens in a new tab
Jun 9, 2026
amd64

Windows Server 2025: Current LTSC release

Download amd64 — build 26100.32995 from UUP Dump, opens in a new tab All 2025 builds JSON — this build from the builds API

AI summary

Windows Server 2025 build 26100.32995 delivers targeted hotpatch-style security remediation with reliability-focused bug fixes, improving virtualization administration stability (including PowerShell Direct/PSDirect scenarios) and reducing operational disruption. fileciteturn0file6

Generated from the package's release notes and forum coverage. Verify against Microsoft's release-health page before acting on it.

Microsoft's known issues — KB5094125

Issue Known issue After installing KB5070881 or later updates, Windows Server Update Services (WSUS) does not display synchronization error details within its error reporting. This functionality is temporarily removed to address the Remote Code Execution Vulnerability, CVE-2025-59287 . Microsoft has received reports of an issue in which certain third-party applications might be unable to launch Microsoft Office applications or open documents after installing the Windows updates released on or after June 9, 2026. This issue affects certain third-party applications that use OLE automation to interact with Microsoft Office applications. In some cases, the Office application or document might fail to open without Workaround: This issue is resolved in Windows updates released on and after July 14, 2026 such as KB5099536 . We recommend you install the latest Windows update for your device as it contains important improvements and issue resolutions, including this one. This issue is addressed in KB5099536 . This issue is addressed in KB5099536 .

Microsoft's release notes for KB5094125 ›