Assume that you have an Always On availability group in Microsoft SQL Server 2019. If a data buffer spans multiple SNI packets, buffer overruns will occur.
Cumulative update information
This problem is fixed in the following cumulative update for SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and security fixes that were in the previous build. We recommend that you install the latest build for your version of SQL Server:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Learn about the terminology that Microsoft uses to describe software updates.