Microsoft Fixes 1,413 Vulnerabilities in Record October Patch Tuesday Update
Microsoft addressed 1,413 security vulnerabilities in its October 2026 Patch Tuesday update, making it the company’s largest monthly security release to date.
Microsoft addressed 1,413 security flaws on October 13, 2026, marking its largest security update to date. Reportedly, artificial Intelligence-based automated scanning systems helped identify some of the security vulnerabilities fixed this month, pushing the total far past previous monthly releases. But it’s unclear how much AI contributed to this month’s fixes.
The October Patch Tuesday update covers 1,102 flaws in Windows components, 134 in Office applications, 61 across developer tools, 36 in SharePoint Server, 22 in SQL Server, 15 in Azure, and seven in Exchange Server, according to one breakdown.
Actively Exploited Zero-Day Bypasses Windows Protection
The most pressing threat patched is CVE-2026-96951, a zero-day flaw in Windows Shell carrying a CVSS score of 8.8. Microsoft confirmed that attackers are actively exploiting the vulnerability. The flaw...
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