---
cve: "CVE-2020-8554"
severity: "MEDIUM"
cvss: 6.3
epss: "9.3%"
vendor: "Kubernetes"
kev: false
exploited: false
published: "2021-01-21 17:15:13"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-07T12:02:11+02:00"
---

# CVE-2020-8554

> 6.3 MEDIUM · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Gering | warn |

## Referenzen

- <https://kubernetes.io/blog/2026/05/26/reconciling-unfixed-kubernetes-cves/>
- <https://groups.google.com/g/kubernetes-security-announce/c/iZWsF9nbKE8>
- <https://github.com/kubernetes/kubernetes/issues/97076>
- <https://lists.apache.org/thread.html/rcafa485d63550657f068775801aeb706b7a07140a8ebbdef822b3bb3%40%3Ccommits.druid.apache.org%3E>
- <https://lists.apache.org/thread.html/r0c76b3d0be348f788cd947054141de0229af00c540564711e828fd40%40%3Ccommits.druid.apache.org%3E>
- <https://lists.apache.org/thread.html/rdb223e1b82e3d7d8e4eaddce8dd1ab87252e3935cc41c859f49767b6%40%3Ccommits.druid.apache.org%3E>
- <https://lists.apache.org/thread.html/r1975078e44d96f2a199aa90aa874b57a202eaf7f25f2fde6d1c44942%40%3Ccommits.druid.apache.org%3E>
- <https://www.oracle.com//security-alerts/cpujul2021.html>
- <https://www.oracle.com/security-alerts/cpujan2022.html>
- <https://www.oracle.com/security-alerts/cpuapr2022.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2020-8554) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_