CVE•Published 2021-01-21•Modified 2026-06-01•1 article on news•7 live references•NVD data

CVE-2020-8554Kubernetes · Kubernetes

Vulnerability data via NVD (ingested)

CVSS v3.1

6.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

EPSS percentile

Exploit Prediction Scoring System · top 4% of all CVEs

Weaknesses (CWE)

CWE-283Unverified Ownership

Description

Kubernetes API server in all versions allow an attacker who is able to create a ClusterIP service and set the spec.externalIPs field, to intercept traffic to that IP address. Additionally, an attacker who is able to patch the status (which is considered a privileged operation and should not typically be granted to users) of a LoadBalancer service can set the status.loadBalancer.ingress.ip to similar effect.

Timeline

Published 2021-01-21

Modified 2026-06-01

External references

NVD MITRE Exploit-DB GitHub PoC Sploitus trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2020-8554

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Kubernetes Kubernetes"

All exposed Kubernetes Kubernetes instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Kubernetes"

HTTP body or banner mentions "Kubernetes" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2020-8554