News

New zero-day bug in Microsoft SharePoint under widespread attack
Security researchers say Microsoft customers should take immediate action to defend against the ongoing cyberattacks, and ...
Google, Microsoft say Chinese hackers are exploiting SharePoint zero-day
The tech giants have evidence that Chinese hackers are exploiting the new bug, but warned "multiple actors" are also hacking ...
Krebs on Security5d
Microsoft Fix Targets Attacks on SharePoint Zero-Day
Microsoft also has issued a patch for a related SharePoint vulnerability — CVE-2025-53771; Microsoft says there are no signs ...
PCMag on MSN5d
Mass Exploitation: Hackers Hit Zero-Day Flaw in Microsoft's SharePoint
The newly discovered flaw in Microsoft's SharePoint software has allowed hackers to target dozens of companies and ...
Microsoft fixes SharePoint zero-day exploits used in cyberattacks and ransomware - how to patch them
Microsoft has pointed the finger at three Chinese nation-state actors for exploiting the SharePoint vulnerabilities. Here's what we know about the security flaws and how to guard against future ...
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 ...
CPO Magazine1d
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 ...
CSO Online5d
Microsoft SharePoint zero-day breach hits on-prem servers
CISA has mandated immediate mitigation for federal agencies, while analysts urge enterprises to accelerate cloud migration ...
SecurityWeek4d
Microsoft Says Chinese APTs Exploited ToolShell Zero-Days Weeks Before Patch
Microsoft says the Chinese threat actors Linen Typhoon, Violet Typhoon, and Storm-2603 have been exploiting the ToolShell ...
US nuclear weapons agency hacked in Microsoft SharePoint attacks
Unknown threat actors have breached the National Nuclear Security Administration's network in attacks exploiting a recently ...
SecurityWeek6d
SharePoint Under Attack: Microsoft Warns of Zero-Day Exploited in the Wild – No Patch Available
Microsoft warned SharePoint Server users of a vulnerability dubbed ToolShell in the software that was assigned CVE-2025-53770 ...