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Microsoft October 2026 Patch Tuesday fixes 1,411 flaws, 3 zero-days
BleepingComputer • • technology
Key Points:
- Microsoft’s October 2026 Patch Tuesday addresses a record-breaking 1,411 security vulnerabilities, including one actively exploited zero-day and two publicly disclosed zero-day flaws, with 70 classified as "Critical."
- The update includes patches for 677 elevation of privilege vulnerabilities, 317 remote code execution flaws, 254 information disclosure issues, and 73 denial of service vulnerabilities among others.
- Windows 11 version 24H2 Home and Pro, and Windows 10 Enterprise LTSB 2016 have reached end of support as of this update, with October 2026 being their final security update.
- Microsoft introduced a new "risk cohorts" system to help organizations prioritize patching by grouping related vulnerabilities, publishing 15 such cohorts for this update to highlight clusters of related security flaws.
- Other major vendors like Adobe, Cisco, Citrix, Fortinet, and SAP also released critical security updates in October 2026, addressing zero-day exploits and severe vulnerabilities across various products and platforms.
