EXECUTIVE SUMMARY
Microsoft’s May 2026 Patch Tuesday addresses approximately 120–140 vulnerabilities affecting Windows, Microsoft Office, SharePoint Server, Dynamics 365, Azure, Hyper-V, Visual Studio Code, Copilot, and other Microsoft enterprise products and services. The release includes multiple Critical Remote Code Execution (RCE), privilege escalation, and information disclosure vulnerabilities impacting core enterprise infrastructure.
Although no actively exploited zero-day vulnerabilities were reported, several flaws are considered high risk due to low attack complexity and the absence of authentication requirements. The most critical vulnerabilities affect Windows DNS Client, Windows Netlogon, and Microsoft Dynamics 365 On-Premises environments.
The update also highlights the expanding attack surface associated with AI-integrated enterprise tools and the increasing role of AI-assisted vulnerability discovery.
- Release: Microsoft Patch Tuesday – May 2026
- Active Region: Global
- Affected Sector: All sectors using Microsoft enterprise infrastructure, cloud services, and developer environments.
- Affected Product: Microsoft Windows, Microsoft Office, SharePoint Server, Dynamics 365 On-Premises, Hyper-V, Visual Studio Code, Copilot, and related Microsoft enterprise services/tools.
- Severity: Critical / Important.
- Published Date: May 12, 2026
CVE LIST
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