Microsoft fixes 421 bugs and a Windows zero-day in August Patch Tuesday - update ASAP

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ZDNET's key takeaways

• Microsoft's August Patch Tuesday fixes 421 vulnerabilities.
• One vulnerability has already been exploited in the wild.
• The update also tweaks File Explorer, Windows Hello, and other features.

Microsoft continues its onslaught against security vulnerabilities, fixing a whopping 421 bugs in August's Patch Tuesday update. But looking beyond the sheer number, Windows users should install this month's update, as it patches a zero-day flaw that's already been exploited by attackers.

Aimed at Windows 11 25H2/24H2, Windows 11 23H2, and Windows 10, the 421 vulnerabilities encompass a range of Microsoft products, including Office, Exchange, Azure, and SharePoint. But it's the Windows patches that clobber the exploited zero-day. In technical jargon, Microsoft titles this flaw a "Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability." What that means isn't as important as what it could do.

Also: A developer...

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