CVE-2020-8558: exploitation status and patch state

CVE-2020-8558 · CVSS 5.4 MEDIUM · EPSS 4%

The Kubelet and kube-proxy components in versions 1.1.0-1.16.10, 1.17.0-1.17.6, and 1.18.0-1.18.3 were found to contain a security issue which allows adjacent hosts to reach TCP and UDP services bound to 127.0.0.1 running on the node or in the node's network namespace. Such a service is generally thought to be reachable only by other processes on the same host, but due to this defeect, could be reachable by other hosts on the same LAN as the node, or by containers running on the same node as the service.

Is CVE-2020-8558 exploited?

Which products and versions are affected?

No affected package list recorded here yet.

Is there a patch?

No patch identifier recorded here yet.

What PlainSec published about CVE-2020-8558

Primary sources

What this record does not say

KEV and EPSS are re-checked daily. Record last updated 2026-08-15.