A stack exhaustion vulnerability in the search function of dtSearch 7.90.8538.1 and prior allows remote attackers to cause a denial of service condition by sending a specially crafted HTTP request.
https://www.dtsearch.com/ReleaseNotesBeta.html
https://www.dtsearch.com/ReleaseNotes.html
https://github.com/bitsadmin/exploits/tree/master/CVE-2018-11488