Cisco provides a service to help you track the status and resolution of bugs that are impacting your work.

Bug Toolkit

Cisco's Bug Toolkit allows you to search for bugs by bug ID, or to search for known bugs associated with a particular product, filtering by software version, keyword, and more. The resulting report shows when each bug was integrated, or fixed if applicable.

To search for bugs associated with the Cisco Unified Communications Manager APIs, select one of the Components from the list or type in custom search terms using the Bug Toolkit interface.

To access Bug Toolkit, please use the link below. You will need a Cisco.com login to access this service.
Go To Bug Toolkit for CUCM APIs