Symptoms
When you run INSERT EXEC with sp_execute_external_script on a table that has an IDENTITY column in SQL Server 2017, you may receive an access violation exception error.
INSERT INTO <TableName> EXEC sp_execute_external_script
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Resolution
This issue is fixed in the following cumulative update for SQL Server:
About cumulative updates for SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:
References
Learn about the terminology that Microsoft uses to describe software updates.