Microsoft October 2026 Patch Tuesday fixes 1,411 flaws, 3 zero-days
Microsoft addresses 1,411 flaws and 3 zero-days in its October 2026 Patch Tuesday update.
Intelligence analysis by Qwen 2.5 (3B)

Microsoft released security patches for 1,411 flaws and 3 zero-days on October 2026 Patch Tuesday.
Microsoft fixed many problems in its software to keep it safe from bad guys who try to break into it.
Analysis
{"
Vulnerability Categories Overview":"This Patch Tuesday addresses 677 elevation of privilege vulnerabilities, 40 security feature bypass vulnerabilities, 317 remote code execution vulnerabilities, 254 information disclosure vulnerabilities, 73 denial of service vulnerabilities, and 28 spoofing vulnerabilities.","
Active Exploitation and Zero-Day Vulnerabilities":"One actively exploited zero-day vulnerability (CVE-2026-96951) was addressed, allowing attackers to bypass the Mark of the Web security feature. Two publicly disclosed zero-day vulnerabilities (CVE-2026-108398 and CVE-2026-92707) were also fixed.","
Non-Security Updates":"In addition to security updates, Microsoft also released updates for the Windows 11 and Windows 10 editions that have reached end of support. These editions will no longer receive security updates starting next month."}
Key points
- Microsoft fixed 1,411 security problems in its software
- Two zero-day vulnerabilities were addressed
- Windows 11 and Windows 10 editions reaching end of support will no longer receive security updates
- Adobe, Atlassian, Cisco, Citrix, Dell, Docker, Fortinet, and GitLab also released security updates
The security fixes will help protect users of Windows 11 and Windows 10 from potential attacks.
If attackers find new ways to exploit the fixed vulnerabilities, they might still be able to cause problems.



