Is CVE-2020-8554 in the CISA KEV catalog?

No. CVE-2020-8554 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-8554?

CVE-2020-8554 has a CVSS v3 base score of 6.3 (MEDIUM).

What is the EPSS score for CVE-2020-8554?

CVE-2020-8554 has an EPSS score of 9.27% (95th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-8554?

Upgrade kubernetes on debian 13 to 1.31.4+ds-1 or later.

CVE & CISA-KEV Catalog

CVE-2020-8554

MEDIUMEPSS 95th pctl

6.3

CVSS v3

NVD

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.

CWE-283

How to fix

Remediation Available

kubernetesDebian

Fixed in:1.31.4+ds-1CVE-2020-8554

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

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

Exploit Intelligence

9.27%probability of exploitation in 30 days

95thpercentile

High risk: more likely to be exploited than 95% of all known CVEs.

References

Patch3

Exploit1

github.com

Third-Party Advisory1

groups.google.com

Other references5

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-01.