Microsoft Corrects Version Details for Dynamics 365 Server Fix Linked to CVE-2026-54981

What Happened

Microsoft has issued a revision to an existing security advisory metadata entry. The update corrects previously published version and download information for an on-premises enterprise server fix. While the advisory initially referenced Dynamics 365 Server version 6.2, Microsoft has confirmed that the correct patch is distributed within Dynamics 365 Server v9.1 (on-premises) Update 1.45, corresponding to build version 9.1.0045.0011.

Impact

This update is strictly informational and does not introduce new code changes or alter the technical nature of the underlying security flaw. However, relying on the previously documented incorrect version numbers could lead administrators to believe systems were patched when they remained vulnerable, or cause deployment failures during manual update verification cycles.

What to Do

SecOps and systems administration teams managing on-premises Microsoft environments should review their patch inventory against the revised build details:

• Verify that affected on-premises instances are upgraded to Dynamics 365 Server v9.1 Update 1.45 (Build 9.1.0045.0011).
• Update internal deployment documentation, asset management systems, and vulnerability management tracking tools to reflect the corrected build number.
• Retrieve the updated installation packages and associated release notes directly through the official Microsoft security update distribution channels.