Microsoft warned SharePoint Server users of a vulnerability dubbed ToolShell in the software that was assigned CVE-2025-53770 ...

A critical zero-day vulnerability, CVE-2025-53770, is actively exploited in Microsoft SharePoint, impacting 75 company ...

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

CISA has mandated immediate mitigation for federal agencies, while analysts urge enterprises to accelerate cloud migration ...

The hackers behind the initial wave of attacks exploiting a zero-day in Microsoft SharePoint servers have so far primarily ...

Microsoft has pointed the finger at three Chinese nation-state actors for exploiting the SharePoint vulnerabilities. Here's ...

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 ...

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Zero Day doesn't waste time in Episode 2. The story picks up at full speed, with George Mullen barely able to hold on ...

The newly discovered flaw in Microsoft's SharePoint software has allowed hackers to target dozens of companies and ...

Zero-Day Exploits Cheat Sheet: Definition, Examples & How It Works Your email has been sent Zero-day exploits use unknown vulnerabilities to infiltrate PCs, networks, mobile phones and IoT devices ...

A zero-day, or zero-day vulnerability, is an undisclosed bug in a piece of software that could theoretically be exploited to damage or gain access to a system.