Microsoft just patched a record 1,400+ flaws in latest Windows 11 security update: what you need to know
Microsoft's latest Patch Tuesday fixes cover over 1400 vulnerabilities with more than 70 rated "Critical."
Microsoft has patched over 1,400 vulnerabilities in its latest Windows 11 security update, setting a record for Patch Tuesday updates. This follows a month of releasing patches for more than 1,000 flaws, and an emergency patch to fix issues caused by those updates. The October patch covers 1,102 flaws in Windows, 134 in Office, 61 in Developer Tools, 36 in SharePoint Server, and 22 in SQL Server.
Among the vulnerabilities are three critical ones: CVE-2026-96951, which allows command injection and was actively exploited; CVE-2026-108398, an untrusted search path issue in .NET Framework; and CVE-2026-21413, a buffer overflow in Windows Raw Image Extension. Microsoft attributes the increase in discovered vulnerabilities to its internal AI-driven scanning harness, MDASH, which has led to more frequent and quicker patches.
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