Microsoft Patch Tuesday October 2026

THREAT INTELLIGENCE

Peer Review

4.8

Proven Trust

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Critical

CVE-2026-96951

Microsoft

October 13, 2026

Executive Summary

Reported 1,411 flaws patched, 70 Critical, including one actively exploited zero-day and two publicly disclosed zero-days.

Key Details

Affected Platform

Microsoft

Attack Surface

Recommended Action

Apply vendor patch

Affected Environment

Windows 10 and 11, Windows Server, Office, Exchange Server, SharePoint, .NET, Azure services, and Microsoft Mariner.

Operational Impact

Privilege escalation, remote code execution, and information disclosure across endpoints, servers, and cloud services.

Technical Root Cause

Mostly elevation of privilege (677) and remote code execution (317) flaws, plus a Windows Shell security feature bypass.

Recommended Mitigation

Apply October 2026 updates after testing, prioritising CVE-2026-96951 and Critical remote code execution flaws on exposed systems.

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Full Technical Report

Download the complete analysis, including detailed technical findings and references.

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References

BleepingComputer, Microsoft Support.