You can download the JIRA Automation Plugin and setup a rule that runs a scheduled jql query with your criteria. Then configure the action to transition the matching issues using a transition id in your workflow that maps the status to reopen.
There are a couple of ways to do this.
Atlassian Summit is an excellent opportunity for in-person support, training, and networking.Learn more
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG