HarveyMoraSQL announces the release of a new security update for SQL Server 2019 RTM CU32, highlighting critical vulnerability fixes and providing direct links for administrators to apply the update.

Security Update Released for SQL Server 2019 RTM CU32

Author: HarveyMoraSQL
Date: August 12, 2025

Microsoft has announced the availability of a new security update for SQL Server 2019 RTM CU32. This cumulative update packages all prior security fixes as well as new patches, including a fix for the recently identified denial of service vulnerability (CVE-2025-49759).

Key Details

This Security Update:
- Addresses vulnerabilities, notably denial of service (CVE-2025-49759).
- Includes all previous SQL Server 2019 RTM Cumulative Update security fixes.
Recommended Action:
- Database administrators and IT professionals should promptly review and deploy the update to safeguard workloads against known exploits.

Important Resources

Security Bulletins:
- CVE-2025-49759 - Microsoft SQL Server Denial of Service Vulnerability
Update Details:
- KB5063757 - Security Update of SQL Server 2019 RTM CU32
Download Links:
- Microsoft Download Center
- Microsoft Update Catalog
Further Guidance:
- Latest Updates for Microsoft SQL Server

Notes

This release is cumulative—applying it will also deliver security improvements from previous updates.
Be sure to validate update application on non-production environments before deploying broadly.

For ongoing SQL Server news and update notifications, follow the SQL Server Blog.

About the Author:
HarveyMoraSQL is a Microsoft community contributor sharing updates and guidance on SQL Server security and best practices.

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