Path Tuesday Updates

Patch Tuesday refers to Microsoft's monthly release of security updates, cumulative patches, and bug fixes, published on the second Tuesday of every month. For IT teams, it marks the start of a critical patching cycle that must be completed promptly to keep endpoints secure. Endpoint Central streamlines this process — from automatic patch detection to scheduled deployment — so your organization stays protected every month without disrupting operations.

What is Patch Tuesday?

Microsoft releases Patch Tuesday updates at approximately 10:00 AM Pacific Time on the second Tuesday of each month. A typical release may include the following update categories:

• Security Updates — Fix vulnerabilities in Microsoft products such as Windows, Microsoft Office, Edge, and .NET. These updates address security issues like remote code execution, privilege escalation, information disclosure, and denial-of-service vulnerabilities.
• Cumulative Updates — Bundled packages for Windows 10, Windows 11, and Windows Server that include all previously released fixes along with new security and reliability improvements. Installing the latest cumulative update brings the system fully up to date.
• Servicing Stack Updates — Updates to the Windows servicing infrastructure responsible for installing Windows updates. These ensure that the update process itself remains reliable and can successfully apply future patches.
• .NET and Platform Updates — Security and reliability fixes for Microsoft .NET Framework, .NET runtime, and other platform components used by applications.
• Microsoft Office and Application Updates — Security and functional updates for Microsoft Office applications and other Microsoft software.

Note: Microsoft also releases Optional Non-Security Updates — covering reliability, performance, and feature improvements — typically in the third or fourth week of the month as preview updates. These are not part of the Patch Tuesday release and may become part of the following month's cumulative update.

Severity Ratings for Security Updates

Security vulnerabilities addressed in Patch Tuesday updates are classified using Microsoft's severity rating system:

• Critical — Vulnerabilities that could allow remote code execution without user interaction.
• Important — Vulnerabilities that could compromise confidentiality, integrity, or availability of data, often requiring some level of user interaction or authentication.
• Moderate / Low — Lower-risk vulnerabilities with limited impact or exploitation difficulty.

Note: Microsoft may release out-of-band security updates outside the regular Patch Tuesday schedule to address actively exploited vulnerabilities or high-risk zero-day threats.

When Are Patches Available in Endpoint Central?

After Microsoft's release, the Endpoint Central team validates and publishes patches to the Central Patch Repository (CPR). The following SLAs apply:

Note:

If patches are not appearing after Patch Tuesday, verify that the server has proper internet connectivity. Then ensure the vulnerability database is up to date by performing a sync from Threats & Patches → Sync Now (for On-Premises) or checking Threats & Patches → Vulnerability DB Summary (for Cloud). Once the database is updated, initiate a scan on endpoints to detect missing patches. For cloud setups, the vulnerability database is synchronized automatically.

How Endpoint Central Handles Patch Tuesday

Detect Missing Patches Automatically

• Patch Scanning: Endpoint Central agents automatically scan endpoints after the vulnerability database is synced. Missing patches are reflected in the console shortly after the sync completes.

Control When and How Patches Deploy

• Deployment Policy: Define deployment windows, reboot behavior, and user notifications. Endpoint Central includes a built-in Patch Tuesday week split option that aligns your deployment schedule directly to Microsoft's release cycle. For critical server environments where frequent patching is not feasible, deployment policies can also be configured for quarterly patch rollouts.
• Automate Patch Deployment (APD): Create rules to automatically detect and deploy patches based on severity, update type, or application — eliminating manual effort every month. Refer to the APD best practices guide for recommended configuration approaches.
• Manual Patch Deployment: Deploy specific patches to specific systems on your own schedule — ideal for critical servers or environments with strict change management requirements.

Validate Before You Deploy

• Test & Approve: Roll patches out to a pilot group first, validate stability, and then approve for production — reducing the risk of compatibility issues reaching business-critical systems.
• Decline Patches: Exclude specific patches from deployment to prevent known compatibility conflicts, without affecting the rest of the Patch Tuesday rollout.

Monitor Compliance and Fix Failures

• Attention Required: Instantly surfaces endpoints with failed deployments or pending reboots so you can act before the next patch cycle.
• Patch Deployment Troubleshooting: Access detailed logs and error diagnostics to resolve deployment failures quickly.
• Patch Reports: Track compliance status across all endpoints post-Patch Tuesday, and schedule automated report delivery to stakeholders and auditors.

Go Beyond Microsoft

• Third-Party Patch Management: Patch Tuesday only covers Microsoft products. Endpoint Central extends patching to 850+ third-party applications, so your entire software estate is addressed in the same cycle.

Monthly Patch Tuesday Webinar

Every month after Patch Tuesday, ManageEngine hosts a free live webinar covering the latest Microsoft security updates and demonstrating how to prioritize and deploy patches using Endpoint Central. Register here.

For more information, refer to the Patch Management FAQ.