CVE-2020-8551

Name: CVE-2020-8551
Creator: NVD / NIST
Published: 2020-03-27T15:15:12.647+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.14%

Last modified Jun 17, 2026

CVE-2020-8551 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. The Kubelet component in versions 1.15.0-1.15.9, 1.16.0-1.16.6, and 1.17.0-1.17.2 has been found to be vulnerable to a denial of service attack via the kubelet API, including the unauthenticated HTTP read-only API typically served on port 10255, and the authenticated HTTPS API typically served on port 10250.. EPSS estimates a 1.14% chance of exploitation in the next 30 days.

Description

The Kubelet component in versions 1.15.0-1.15.9, 1.16.0-1.16.6, and 1.17.0-1.17.2 has been found to be vulnerable to a denial of service attack via the kubelet API, including the unauthenticated HTTP read-only API typically served on port 10255, and the authenticated HTTPS API typically served on port 10250.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

1.14%

62.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Kubernetes	Kubernetes	>= 1.15.0, <= 1.15.9
Kubernetes	Kubernetes	>= 1.16.0, <= 1.16.6
Kubernetes	Kubernetes	>= 1.17.0, <= 1.17.2
Fedoraproject	Fedora	32

References

https://github.com/kubernetes/kubernetes/issues/89377Issue Tracking, Patch, Third Party Advisory
https://groups.google.com/forum/#%21topic/kubernetes-security-announce/2UOlsba2g0s
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/
https://security.netapp.com/advisory/ntap-20200413-0003/Third Party Advisory
https://github.com/kubernetes/kubernetes/issues/89377Issue Tracking, Patch, Third Party Advisory
https://groups.google.com/forum/#%21topic/kubernetes-security-announce/2UOlsba2g0s
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/
https://security.netapp.com/advisory/ntap-20200413-0003/Third Party Advisory

Timeline

Published: Mar 27, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-8551?

How severe is CVE-2020-8551?

CVE-2020-8551 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.14% probability of exploitation in the next 30 days.

How do I fix CVE-2020-8551?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-8551?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST