HarveyMoraSQL details the release and significance of the security update for SQL Server 2022 RTM CU20, outlining the included fixes and providing essential resources for administrators.

Security Update for SQL Server 2022 RTM CU20

Overview

A new security update for SQL Server 2022 RTM CU20 is now available for download. This update includes all previously released security fixes for SQL Server 2022 RTM Cumulative Updates (CUs) and adds new fixes described in the referenced knowledge base article.

Key Points

  • Update Availability: Download from Microsoft Download Center or Microsoft Update Catalog.
  • Security Bulletin: Addresses CVE-2025-49759 (SQL Server Denial of Service Vulnerability).
  • Knowledge Base Article: See KB5063814 for details.
  • Includes All Prior Fixes: This update is cumulative; apply it to bring your SQL Server 2022 RTM instance up to date with the latest security patches.

Action Items for Administrators

  • Review Impact: Examine the CVE and KB for relevance to your environment.
  • Patch Promptly: Apply this update to production and non-production SQL Server 2022 RTM CU20 environments to mitigate security risks.
  • Stay Current: Consult the latest updates for Microsoft SQL Server for ongoing security and feature releases.

Additional Information

  • Author: HarveyMoraSQL
  • Update Released: August 12, 2025
  • Version: 1.0

For further questions or technical discussion, refer to the linked Knowledge Base article and the Microsoft Tech Community forums under SQL Server.

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