VulnerabilitiesNov 11, 2026

Microsoft Patch Tuesday for November 2026 — Snort rules and prominent vulnerabilities

Microsoft November 2026 Patch Tuesday addresses 1095 vulnerabilities, including 64 critical ones.

Microsoft's November 2026 Patch Tuesday update addresses 1095 vulnerabilities across its product range, with 64 classified as critical. Of these critical flaws, 48 are remote code execution (RCE) vulnerabilities. One vulnerability, CVE-2026-124194 affecting Microsoft Office Outlook, has been exploited in the wild.

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The lesson from this incident

Full lesson

Microsoft's November 2026 Patch Tuesday addressed 1,095 vulnerabilities, including 64 critical flaws—48 of which enable remote code execution—and one actively exploited zero-day in Microsoft Office Outlook (CVE-2026-124194). The sheer volume of critical patches underscores the persistent challenge organizations face in maintaining timely remediation at scale. The in-the-wild exploitation of the Outlook vulnerability means that any organization running an unpatched version is already exposed to active threat actors. Delayed patching, especially for widely deployed productivity software like Outlook, creates a window of opportunity that adversaries routinely exploit for initial access and lateral movement.

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Vulnerability scanning and prioritisation
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Automated patch management
Known holes get closed in days, not months.
For exampleAction1 Patch Management Microsoft Intune ManageEngine Patch Manager Plus all options
Threat intelligence
Attack campaigns reach your sector, suppliers or software before your team hears about them.
For exampleCrowdStrike Falcon Adversary Intelligence ReliaQuest GreyMatter Digital Risk Protection Dataminr Agentic Threat Intelligence Platform all options

Indicators of Compromise

Extracted by AI from the linked source. Not reviewed by an editor. How this works

cve — CVE-2026-124194
cve — CVE-2026-113862
cve — CVE-2026-118146
cve — CVE-2026-118148
cve — CVE-2026-118207
cve — CVE-2026-119952
cve — CVE-2026-109459
cve — CVE-2026-119967
cve — CVE-2026-110043
cve — CVE-2026-110068
cve — CVE-2026-111309
cve — CVE-2026-110047
cve — CVE-2026-110067
cve — CVE-2026-111285
cve — CVE-2026-124185
cve — CVE-2026-111289
cve — CVE-2026-120003
cve — CVE-2026-112967
cve — CVE-2026-113752
cve — CVE-2026-113753
cve — CVE-2026-113856
cve — CVE-2026-113860
cve — CVE-2026-113861
cve — CVE-2026-113865
cve — CVE-2026-119947
cve — CVE-2026-119960
cve — CVE-2026-113864

Entities

Microsoft (vendor)Microsoft Office Outlook (product)Windows Network Address Translation (NAT) (product)Active Directory Domain Services (technology)Microsoft Exchange Server (product)Windows Schannel (product)