Version 2016.3.7 is a bugfix release for 2016.3.0.
CVE-2017-12791 Maliciously crafted minion IDs can cause unwanted directory traversals on the Salt-master
Correct a flaw in minion id validation which could allow certain minions to authenticate to a master despite not having the correct credentials. To exploit the vulnerability, an attacker must create a salt-minion with an ID containing characters that will cause a directory traversal. Credit for discovering the security flaw goes to: Vernhk@qq.com