addresses a remote code execution (RCE) vulnerability that was identified in WSUS
October 23, 2025—KB5070879 (OS Build 25398.1916) 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 (KB5066780), 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.

