Summary: Microsoft has addressed a critical issue that caused crashes in Microsoft 365 applications and Classic Outlook on Windows Server 2016 and 2019 following a recent update. The crashes were linked to the integration of the React Native framework in the latest version of the apps, and a fix has been released to resolve the problem. Users can either wait for the automatic update or manually revert to a previous version as a temporary solution.

Threat Actor: N/A | N/A
Victim: Microsoft 365 users | Microsoft 365 users

Keypoints :

• Recent Office update caused crashes in Microsoft 365 apps and Classic Outlook on Windows Server systems.
• Microsoft released a fix and advised users on how to revert to a previous version if needed.
• This issue follows other recent outages affecting Microsoft 365 services, including MFA and authentication failures.