
Microsoft Fixes Record 1,413 CVEs in October Patch Tuesday
Microsoft's October 2026 Patch Tuesday fixes 1,413 Microsoft CVEs. That is a new record, set only one month after September's previous high of 974, and it represents a jump of roughly 45%. The release covers Windows, Microsoft 365 and Office, SharePoint Server, SQL Server, Exchange Server, Azure, Defender and developer tools. It also republishes one non-Microsoft CVE. Two of the fixes are zero-days: one is under active exploitation and the other has been publicly disclosed. Severity Breakdown for October 2026 Patch Tuesday Of the 1,408 CVEs with severity ratings, 78 are Critical, 1,329 are Imp








