41 Microsoft Zero-Day Warnings — Millions Of Users Face Update Choice

41 Microsoft Zero-Day Warnings — Millions Of Users Face Update Choice

By Davey Winder
Publication Date: 2025-12-14 14:11:00

It has only been a matter of days since the U.S. Cybersecurity and Infrastructure Security Agency confirmed that Windows users were under attack from two zero-day exploits and urged federal users to update immediately. Here’s the thing, though, as a new report revealed a total of 41 Microsoft zero-day vulnerabilities across 2025 that had been addressed in Patch Tuesday rollouts, others remain unpatched at the time of writing. Yes, you read that right. So, millions of Microsoft users have a security update choice to make: Is relying upon Patch Tuesday enough?

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Microsoft Patched 41 Zero-Days — But It’s Not Good Enough

A new Tenable report has confirmed that Microsoft detailed and addressed more than 1,100 vulnerabilities during 2025 Patch Tuesday rollouts. That number included a total of 41 zero-day vulnerabilities. Of…