CVE-2020-8554

mediumpriority · track · 33EPSS 0.093 · 95 %ileexploit · PoCDEEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

5 exploits · PoC

Likely / severe?

9.27% (95th) EPSS

CVSS 6 · medium

Is it mine?

12 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-23

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

Technical severity, 0–10. One row per scoring source.

6.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.06mediumAV:N/AC:M/Au:S/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 6.8 · impact 6.4

v3.15mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:Lprimary · NVD / NIST USexploitability 1.6 · impact 3.4

v3.16.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:Lsecondary · ENISA EU

v3.16.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:Lsecondary · jordan@liggitt.netexploitability 2.8 · impact 3.4

v3.15mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:Lsecondary · OSV

v3.14.7mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-283USCWE-283US

exploits (5)

Public proof-of-concept and weaponised exploit code.

Dviejopomata/CVE-2020-8554Dviejopomata/CVE-2020-8554PoC · poc_in_github
alebedev87/gatekeeper-cve-2020-8554alebedev87/gatekeeper-cve-2020-8554PoC · poc_in_github
jrmurray000/CVE-2020-8554Mitigate CVE-2020-8554 with Policy Controller in AnthosPoC · poc_in_github
rancher/externalip-webhookCVE-2020-8554: Man in the middle using LoadBalancer or ExternalIPsPoC · poc_in_github
twistlock/k8s-cve-2020-8554-mitigationsPrisma Cloud Compute Admission rules to mitigate Kubernetes CVE-2020-8554PoC · poc_in_github

affected products (12)

Products and version ranges known to be affected.

IBM DB2all versionscert_bundDEcpe:/a:ibm:db2:-
IBM DB2 On Openshift <11.5.7.0-cn5all versionscert_bundDE
IBM DB2 on Cloud Pak for Data <4.5.0all versionscert_bundDE
IBM MQall versionscert_bundDEcpe:/a:ibm:mq:-
IBM DB2≤ On Openshift <11.5.7.0-cn5cert_bundDE
IBM DB2≤ on Cloud Pak for Data <4.5.0cert_bundDE
Kubernetes Kubernetes0 → *enisa_euvdEU
kubernetes kubernetesall versionsnvdUScpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*
oracle communications cloud native core network slice selection function= 1.2.1nvdUScpe:2.3:a:oracle:communications_cloud_native_core_network_slice_selection_function:*:*:*:*:*:*:*:*
oracle communications cloud native core policy= 1.15.0nvdUScpe:2.3:a:oracle:communications_cloud_native_core_policy:*:*:*:*:*:*:*:*
oracle communications cloud native core service communication proxy= 1.14.0nvdUScpe:2.3:a:oracle:communications_cloud_native_core_service_communication_proxy:*:*:*:*:*:*:*:*
Go k8s.io/kubernetes≤ 1.22.0osvUSpkg:golang/k8s.io/kubernetes

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-0510IBM DB2: Mehrere SchwachstellenDeutsch2022-06-29csaf · cert_bundDE
Ein entfernter, anonymer, authentisierter oder lokaler Angreifer kann mehrere Schwachstellen in IBM DB2 ausnutzen, um Dateien zu manipulieren, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand auszulösen, willkürlichen Code mit erhöhten Rechten auszuführen, Informationen falsch darzustellen und beliebigen Code auszuführen.
GHSA-j9wf-vvm6-4r9wUnverified Ownership in Kubernetes2022-02-08ghsa · osvUS
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.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd osv NVD CVE.org MITRE

published 2021-01-21modified 2026-06-17

references (37)

External citations — patches, advisories, analysis.

scry

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