httpd on TP-Link TL-WPA4220 devices (hardware versions 2 through 4) allows remote authenticated users to trigger a buffer overflow (causing a denial of service) by sending a POST request to the /admin/syslog endpoint. Fixed version: TL-WPA4220(EU)_V4_201023
https://www.tp-link.com/us/security
https://the-hyperbolic.com/posts/vulnerabilities-in-tlwpa4220/