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Microsoft fixes three SharePoint zero-day exploits used in series of cyberattacks - how to patch them
Microsoft has patched two critical zero-day SharePoint security flaws that have already been exploited by hackers to attack vulnerable organizations.

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CPO Magazine · 17h
Microsoft Releases Emergency Updates Amid Active Exploitation of SharePoint Zero-Day Vulnerability Chain
New zero-day bug in Microsoft SharePoint under widespread attack
Tally of Microsoft victims surges to 400 as hackers exploit SharePoint flaw
The number of companies and organizations compromised by a security vulnerability in Microsoft Corp.’s SharePoint servers is increasing rapidly, with the tally of victims soaring more than sixfold in ...

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Microsoft says China-based hackers exploiting critical SharePoint vulnerabilities to deploy Warlock ransomware — three China-affiliated threat actors seen taking advantage
Microsoft fixes SharePoint zero-day exploits used in cyberattacks and ransomware - how to patch them
Microsoft probing if Chinese hackers learned SharePoint flaws through alert, Bloomberg News reports
A security patch Microsoft released this month failed to fully fix a critical flaw in the U.S. tech giant's SharePoint server software, opening the door to a sweeping global cyber espionage effort.

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The SharePoint flaw has now hit over 400 companies including a US nuclear administration
Hackers attack Microsoft SharePoint, targeting organizations like U.S nuclear security
The Hacker News5d
Critical Unpatched SharePoint Zero-Day Actively Exploited, Breaches 75+ Company Servers
The U.S. Cybersecurity and Infrastructure Security Agency (CISA), in an alert, said it's aware of active exploitation of CVE-2025-53770, which enables unauthenticated access to SharePoint systems and arbitrary code execution over the network.
Hackers exploiting SharePoint zero-day seen targeting government agencies
The hackers behind the initial wave of attacks exploiting a zero-day in Microsoft SharePoint servers have so far primarily targeted government organizations, according to researchers and news reports.
SecurityWeek1d
ToolShell Attacks Hit 400+ SharePoint Servers, US Government Victims Named
More information has emerged on the ToolShell SharePoint zero-day attacks, including impact, victims, and threat actors.
The Hacker News3d
Hackers Exploit SharePoint Zero-Day Since July 7 to Steal Keys, Maintain Persistent Access
Active SharePoint exploits since July 7 target governments and tech firms globally, risking key theft and persistent access.
Asianet Newsable on MSN3d
US Nuclear Weapons Agency Reportedly Hit In Microsoft ‘Zero-Day’ Breach — DOE Says Impact Was Minimal
Providing additional updates on the breach, Microsoft said in a blog post on Tuesday that two Chinese nation-state operators, Linen Typhoon and Violet Typhoon, exploited vulnerabilities in the internet-facing SharePoint servers.
Microsoft continues investigation of SharePoint cyberattack by Chinese hackers: report
Microsoft (MSFT) is trying to determine if a leak from its early alert system for cybersecurity companies created a window for Chinese hackers to attack its SharePoint service, according to Bloomberg.
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