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

Our takeMicrosoft's October 2026 Patch Tuesday fixes a record 1,411 flaws, including one actively exploited zero-day. Patch today.
Sources (3)
What this means for you — Security leader:Microsoft's October 2026 Patch Tuesday addresses 1,411 CVEs including one exploited and two public zero-days. Prioritize testing and deployment of the updates today.
What this means for you — Lean IT orgs:Microsoft released updates fixing 1,411 security issues including three zero-days. Install the patches on all Windows machines and Office apps as soon as you can.
What this means for you — MSP:Microsoft's October 2026 Patch Tuesday fixes a record 1,411 flaws, three of them zero-days (one exploited). Run the updates across all client estates and test the critical security-only bundle first.
What this means for you — Researcher:Microsoft's October 2026 Patch Tuesday fixes 1,411 CVEs including one actively exploited and two public zero-days. Review the advisory for new bypass and elevation-of-privilege details.