Symptoms
When you set the display language for Outlook Web App (OWA) to Korean in a Microsoft Exchange Server 2013 environment, some Korean language is translated incorrectly.
Resolution
To resolve this issue, install the following cumulative update:
2892464 Description of Cumulative Update 3 for Exchange Server 2013
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.