CVE-2018-1158
Mikrotik RouterOS before 6.42.7 and 6.40.9 is vulnerable to a stack exhaustion vulnerability. An authenticated remote attacker can crash the HTTP server via recursive parsing of JSON.
Date published : 2018-08-23
https://mikrotik.com/download/changelogs
https://mikrotik.com/download/changelogs/bugfix-release-tree