KB5070884: address a remote code execution (RCE) vulnerability that was identified in WSUS

October 23, 2025—KB5070884 (OS Build 20348.4297) Out-of-band

Improvements
This out-of-band (OOB) update includes quality improvements. This update is cumulative and includes security fixes and improvements from the October 14, 2025, security update (KB5066782), in addition to the following:

[Windows Server Update Services (WSUS)] Fixed: This update addresses a remote code execution (RCE) vulnerability that was identified in WSUS reporting web services. For more information about the security fix, see CVE-2025-59287.