Microsoft Solves WSUS Bug Blocking: Windows May Security Updates

Reportedly, the Microsoft has fixed a known issue that prevented managed devices from receiving the May 2021 Patch Tuesday Window security updates.

As per the Microsoft explained through Windows Health Dashboard, “When checking for updates within Windows Server Update Services (WSUS) or Microsoft Endpoint Configuration Manager and managed devices that connect to these servers,” this month’s security updates “might not be available or offered.”

“This might also affect Security Only and Internet Explorer Cumulative Rollups, on platforms that receive these types of updates.”

Technically, the known issue has impacted both client and server platforms from Windows 7 SP1 and Windows Server 2008 SP2 up to the latest versions.

Security updates might be delayed in certain regions

Microsoft has reportedly solved the known issue on the service-side, and the updates are expected to start rolling out to all affected devices in managed environments.

According to Microsoft, “If you initiate a synchronization cycle and are still not being offered the updates, please check again soon”. The tech giant also said, “There might be a slight delay as it propagates to all servers in all regions.”

During Tuesday’s Patch, the Microsoft fixed around 55 vulnerabilities, in which 4 classified as Critical, 50 as Important, while the remaining one as Moderate. In addition to these, 3 zero day vulnerabilities also publicly disclosed, but not yet known to be used in attacks.

However, the Microsoft started rolling out new cumulative updates for all supported Windows versions along with yesterday cumulative updates with security fixed for Windows 10 2004 and 20H2.