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Threat actors with ties to China exploited the ToolShell security vulnerability in Microsoft SharePoint to breach a telecommunications company in the Middle East after it was publicly disclosed and patched in July 2025

More from The Hacker News 23 Oct 2025, 1:56 a.m. America Breach China Disclosure Exploit Flaw Government Microsoft Middle East Patch Threat Actor Vulnerability

The U.S. Federal Bureau of Investigation (FBI) is warning that Barracuda Networks Email Security Gateway (ESG) appliances patched against a recently disclosed critical flaw continue to be at risk of potential compromise from suspected Chinese hacking groups

More from The Hacker News 25 Aug 2023, 8:27 p.m. America China Compromise Critical Vulnerability Disclosure Email FBI Flaw Hacking Investigation Patch Vulnerability Warning