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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.
A July 8 fix for a critical SharePoint zero-day failed to stop active exploitation, enabling state-backed attackers to breach ...
More information has emerged on the ToolShell SharePoint zero-day attacks, including impact, victims, and threat actors.
The name was coined by Dinh Ho Anh, a researcher from Khoa of Viettel Cyber Security, who developed the exploit. The ...
9hon MSN
Microsoft probing if Chinese hackers learned SharePoint flaws through alert, Bloomberg News reports
Microsoft is investigating whether a leak from its early alert system for cybersecurity companies allowed Chinese hackers to ...
Microsoft also has issued a patch for a related SharePoint vulnerability — CVE-2025-53771; Microsoft says there are no signs ...
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) issued an alert Sunday detailing active exploitation of a ...
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