The name was coined by Dinh Ho Anh, a researcher from Khoa of Viettel Cyber Security, who developed the exploit. The ...

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

ESET Research has been monitoring intense attacks involving the recently discovered ToolShell zero-day vulnerabilities.

More information has emerged on the ToolShell SharePoint zero-day attacks, including impact, victims, and threat actors.

More details emerged on the ToolShell zero-day attacks targeting SharePoint servers, but confusion remains over the ...

Some administrators who logged in last week found their on-premises Microsoft SharePoint servers silently uploading web ...

Microsoft has observed three China-based threat actors, Linen Typhoon, Violet Typhoon and Storm-2603, exploiting the ...

The ToolShell bugs are being exploited by cybercriminals and APT groups alike, with the US on the receiving end of 13 percent ...

Microsoft has released security patches for the zero-day vulnerability chain dubbed ToolShell, capable of remote code ...

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

On July 20, 2025, Microsoft and the Cybersecurity and Infrastructure Security Agency (CISA) issued urgent warnings about new, actively ...

Microsoft released a patch Monday for SharePoint Server 2016 that protects customers against a pair of vulnerabilities, which ...