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Microsoft Releases Emergency Updates Amid Active Exploitation of SharePoint Zero-Day Vulnerability Chain
Microsoft has released security patches for the zero-day vulnerability chain dubbed ToolShell, capable of remote code execution on SharePoint, resulting in the exploitation of at least 54 organizations worldwide.
Microsoft SharePoint zero-day exploited in RCE attacks, no patch available
Critical zero-day vulnerabilities in Microsoft SharePoint, tracked as CVE-2025-53770 and CVE-2025-53771, have been actively exploited since at least July 18th, with no patch available and at least 85 servers already compromised worldwide.
The name was coined by Dinh Ho Anh, a researcher from Khoa of Viettel Cyber Security, who developed the exploit. The ...
More information has emerged on the ToolShell SharePoint zero-day attacks, including impact, victims, and threat actors.
The U.S. Cybersecurity and Infrastructure Security Agency (CISA), in an alert, said it's aware of active exploitation of ...
Microsoft also has issued a patch for a related SharePoint vulnerability — CVE-2025-53771; Microsoft says there are no signs ...
State CISOs in North Carolina and Arizona said their teams began work immediately to ensure on-prem SharePoint systems were ...
Active SharePoint exploits since July 7 target governments and tech firms globally, risking key theft and persistent access.
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) issued an alert Sunday detailing active exploitation of a ...
Asianet Newsable on MSN2d
US Nuclear Weapons Agency Reportedly Hit In Microsoft ‘Zero-Day’ Breach — DOE Says Impact Was MinimalProviding additional updates on the breach, Microsoft said in a blog post on Tuesday that two Chinese nation-state operators, ...
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