Microsoft says the Chinese threat actors Linen Typhoon, Violet Typhoon, and Storm-2603 have been exploiting the ToolShell ...

Hackers with ties to the Chinese government have been linked to a recent wave of widespread attacks targeting a Microsoft ...

If exploited, attackers can gain full access to SharePoint content and potentially pivot to Outlook, Teams, and OneDrive.

Microsoft has started releasing updates to fix the exploited SharePoint zero-days tracked as CVE-2025-53770 and CVE-2025-53771.

A security patch released by Microsoft last month failed to fully fix a critical flaw in U.S. tech giant's SharePoint server ...

A security patch Microsoft released this month failed to fully fix a critical flaw in the U.S. tech giant's SharePoint server ...

An ongoing cyberattack campaign known as “ToolShell” is exploiting on-premises Microsoft SharePoint Servers and has ...

Microsoft said an attack campaign targeting zero-day vulnerabilities in on-premises SharePoint servers appears to have begun ...

While all patches against ‘ToolShell’ exploits are now available for on-premises SharePoint Servers, attackers will be ...

This Alert was updated to reflect newly released information from Microsoft, and to correct the actively exploited Common Vulnerabilities and Exposures (CVEs), which have been confirmed ...

Microsoft also has issued a patch for a related SharePoint vulnerability — CVE-2025-53771; Microsoft says there are no signs ...

The attacks, discovered over the weekend, exploit a previously unknown vulnerability in the document-sharing software, ...