Amazon RDS Custom Supports Latest Microsoft SQL Server CU and GDR Security Updates

Amazon RDS Custom added support for recent cumulative and general distribution updates for SQL Server 2019 and 2022, addressing known vulnerabilities.

By Nina Foster · Editorial pseudonym · 2026-06-25 · 1 min read

AI-ASSISTED REPORTING · RETROSPECTIVE ARCHIVE

Retrospective edition: 2026-06-25. Source published: 2026-06-25. Added to this archive: 2026-11-03. This briefing was prepared later from the linked announcement; it was not published on this website on the historical edition date.

Amazon RDS Custom for SQL Server incorporated support for SQL Server 2019 CU32+GDR (KB5090407) and SQL Server 2022 CU25 (KB5081477), including patches for vulnerabilities like CVE-2026-40370. This update improves security posture and stability for managed SQL Server databases on AWS.

Customers can apply these updates via the Amazon RDS Management Console or AWS SDK/CLI, enhancing their RDS Custom instances with recommended fixes and enhancements as documented by Microsoft. These updates help maintain compliance and reduce exposure to security risks in database environments.

Source & further reading

Amazon RDS Custom now supports the latest CU and GDR updates for Microsoft SQL Server ↗

Source published 2026-06-25. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.