Eye Security, a cybersecurity firm, says it "identified active large-scale exploitation" of the new vulnerability "being used ...

Department of Homeland Security headquarters, several of its agencies and the Department of Health and Human Services have ...

This Alert was updated to reflect newly released information from Microsoft, and to correct the actively exploited Common ...

CISA gave agencies until the end of the day on Monday to mitigate a severe zero-day vulnerability in Microsoft's widely used ...

Federal cybersecurity officials have issued a warning to Microsoft users about a security flaw allowing hackers to access to ...

Microsoft issued an alert about "active attacks" targeting its SharePoint server software, which is widely used by businesses and government agencies to share files.

The U.S. Cybersecurity and Infrastructure Security Agency (CISA), in an alert, said it's aware of active exploitation of ...

Microsoft has confirmed that vulnerabilities in its on-premises SharePoint Server installations, a network spoofing vulnerability (CVE-202549706), ...

Hackers are actively exploiting a critical SharePoint zero-day (CVE-2025-53770), hitting 400+ firms and institutions like the ...

Microsoft warned of active zero-day attacks on SharePoint servers used by government and businesses, with FBI investigating.