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Microsoft October 2026 Patch Tuesday fixes 1,411 flaws, 3 zero-days

BACKGROUND
1 SIGNALFIRST DETECTED 14 October 2026
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14 Apr
Patch Tuesday, April 2026 Edition

Microsoft today pushed software updates to fix a staggering 167 security vulnerabilities in its Windows operating systems and related software, including a SharePoint Server

REPORT · WHEN · Krebs on SecurityOPEN STORY
14 Jul
Microsoft July 2026 Patch Tuesday fixes massive 570 flaws, 3 zero-days

Today is Microsoft's July 2026 Patch Tuesday, and with it comes security updates for a record-breaking 570 flaws, including two zero-day vulnerabilities exploited in attacks and

REPORT · WHEN · BleepingComputerOPEN STORY
13 Oct
Microsoft Patches More Than 1,400 Security Flaws

Microsoft today issued updates to fix more than 1,400 security vulnerabilities in its Windows operating systems and other software. Today's epic patch batch dwarfs September's

REPORT · WHEN · Krebs on SecurityOPEN STORY
13 Oct
October 2026 Microsoft Patch Tuesday, (Tue, Oct 13th)

Microsoft today released patches for 1,417 vulnerabilities. 76 of these vulnerabilities are rated critical, with 7 critical vulnerabiilties requiring no customer actions. One

REPORT · WHEN · SANS Internet Storm CenterOPEN STORY
14 Oct
Update Windows: Record Patch Tuesday fixes flaw already under attack

Microsoft’s October updates address a record 1,413 vulnerabilities, including a Windows flaw attackers are already exploiting and two other zero-days.

REPORT · HOW · Malwarebytes LabsOPEN STORY
14 Apr
Microsoft Patch Tuesday April 2026., (Tue, Apr 14th)

This month&&#x23&#x3b;x26&#x3b;&#x23&#x3b;39&#x3b;s Microsoft Patch Tuesday looks like a record one, but let&&#x23&#x3b;x26&#x3b;&#x23&#x3b;39&#x3b;s look at it a bit closer to

REPORT · HOW · SANS Internet Storm CenterOPEN STORY
15 Apr
Microsoft Issues Patches for SharePoint Zero-Day and 168 Other New Vulnerabilities

Microsoft on Tuesday released updates to address a record 169 security flaws across its product portfolio, including one vulnerability that has been

REPORT · WHAT · The Hacker NewsOPEN STORY
8 Sept
Microsoft breaks another patch Tuesday record

Engineers at Microsoft typically enjoy a quieter summer to take vacations and spend time with family, as is common at many companies. But this year, the season has been unusually

REPORT · HOW · The Verge TechOPEN STORY
Sources
BleepingComputer

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