The Application Firewall Pack (AFP, aka Web Application Firewall) component on Kemp Load Balancer devices with software before 7.2.40.1 allows a Security Feature Bypass via an HTTP POST request.
https://www.pallas.com/advisories/cve_2017_15524_kemp_afp_waf_bug_on_post_data
https://euvd.enisa.europa.eu/vulnerability/EUVD-2017-6976
http://www.securityfocus.com/archive/1/541602/100/0/threaded