Microsoft · ServicingStack update · October 23, 2025

KB5070884: October 2025 cumulative update for Windows Server 23H2

KB5070884, released October 23, 2025, fixes 1 CVE across 2 products. One of them is being exploited (CVE-2025-59287); 1 on CISA KEV. Patch Radar priority: Patch now.

Patch now1 on CISA KEV
CVEs closed
1
1 rated Critical
Exploited
1
CVE-2025-59287
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.9998
99th percentile

Applies to

ProductBuild after install
Windows Server 202220348.4297
Windows Server 2022 (Server Core installation)20348.4297

CVEs this fix closes

PriorityCVEComponentImpactCVSSEPSSExploitation
Patch now CVE-2025-59287 Windows Server Update Service Remote Code Execution 9.8 0.9998 KEVExploited
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