Microsoft's May 2026 Patch Tuesday has delivered a comprehensive set of updates, addressing 120 vulnerabilities across a range of its products, including Windows, Office, Azure, and Microsoft 365 apps. Notably, 29 of these vulnerabilities are remote code execution (RCE) flaws that have been classified as Critical. This month's updates do not include any zero-day vulnerabilities that have been exploited in the wild, but the wide array of affected systems underscores the importance of prompt action. The vulnerabilities span a variety of components, from DNS and Netlogon to Office and Wi-Fi drivers, pointing to significant risk potential if left unpatched. High-value targets identified include Microsoft Dynamics 365, multiple Office and Word RCEs, Windows DNS Client, and Netlogon. These systems, often exposed to untrusted network traffic and documents, are especially vulnerable to phishing and lateral movement attacks. Further risks are posed by vulnerabilities in Windows networking and kernel-mode components, which could affect domain-joined and internet-facing systems. Two particularly concerning vulnerabilities are the Windows DNS Client RCE and Netlogon RCE, which could allow attackers to execute code in sensitive parts of Windows. The updates also address issues in Windows Hyper-V, Secure Boot, and security-feature bypass vulnerabilities, particularly relevant for cloud environments. AI and cloud-connected development tools have also been targeted, with fixes applied to M365 Copilot, GitHub Copilot, and Azure Machine Learning notebooks. These updates, while rated Important, can have significant impacts given the proximity of these AI assistants to sensitive data. Developer tools like Visual Studio Code and .NET receive attention too, with patches for RCE and privilege escalation vulnerabilities. Security teams should prioritize patching for internet-facing and high-value services, starting with on-premises Dynamics 365, SharePoint, and Office/Word RCEs, followed by Windows DNS Client, Netlogon, and other critical components. Organizations with virtualized workloads should also prioritize Hyper-V updates, and those using AI and Azure-based tools should not ignore related fixes.