I am trying to upgrade Exchange Server 2013 SP1 to CU7 but after complete 46% of Mailbox Role Transport Service the Upgrade Failed and automatically rebooted the server. After restart its showing memory dump. How can we solved it.

Do you utilize Mount Points for your Mailbox Databases?

Hi livesayed,

According to your description, we cannot get the key of this question.
Would you please help to collect related event log or setup log? Its more helpful for further troubleshooting.

Besides, I find an similar thread about Exchange 2013 CU2 upgrade to CU3 Failed at Front End Transport Service, for your reference:
https://social.technet.microsoft.com/Forums/office/en-US/32e06b5b-76bb-45d0-bf99-0b83c3182199/exchange-2013-cu2-upgrade-to-cu3-failed-at-front-end-transport-service?forum=exchangesvrdeploy

Best Regards,
Allen Wang

• Edited by Allen_WangJF 5 hours 23 minutes ago