The Kubelet component in versions 1.15.0-1.15.9, 1.16.0-1.16.6, and 1.17.0-1.17.2 has been found to be vulnerable to a denial of service attack via the kubelet API, including the unauthenticated HTTP read-only API typically served on port 10255, and the authenticated HTTPS API typically served on port 10250.
https://security.netapp.com/advisory/ntap-20200413-0003/
https://groups.google.com/forum/#%21topic/kubernetes-security-announce/2UOlsba2g0s