CVE-2020-8557

FAUCET Score

CVE-2020-8557 describes a denial-of-service vulnerability in Kubernetes kubelet versions 1.1-1.16.12, 1.17.0-1.17.8, and 1.18.0-1.18.5. The kubelet's eviction manager fails to account for disk usage when a pod writes to its own /etc/hosts file, allowing a malicious pod to fill the node's storage and cause a node failure. This vulnerability has a CVSS score of 5.5 (Medium), indicating a local attack vector with low complexity that can lead to high availability impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		< 1.16.13CPE matchmatch criteria	cpe:2.3:a:kubernetes:kubernetes::::::::
		>= 1.17.0, < 1.17.9CPE matchmatch criteria	cpe:2.3:a:kubernetes:kubernetes::::::::
		>= 1.18.0, < 1.18.6CPE matchmatch criteria	cpe:2.3:a:kubernetes:kubernetes::::::::
		>= 1.16, < 1.16.13CPE match	cpe:2.3:a:kubernetes:kubernetes::::::::
		>= 1.17, < 1.17.9CPE match	cpe:2.3:a:kubernetes:kubernetes::::::::

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

Exploitability Score

1.8

Impact Score

3.6

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.50%

Probability of exploitation in next 30 days

EPSS Percentile

40.0%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0050 is in the 92nd percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (15)

check_pointpatch availablevia llm_extracted

View patch

chromepatch availablevia llm_extracted

View patch

github_advisorypatch availablevia nvd_reference

View patch

gopatch availablevia ghsa

Product: k8s.io/kubernetes/pkg/kubeletFixed in: 1.16.13

gopatch availablevia ghsa

Product: k8s.io/kubernetes/pkg/kubeletFixed in: 1.17.9

gopatch availablevia ghsa

Product: k8s.io/kubernetes/pkg/kubeletFixed in: 1.18.6

infiniflowpatch availablevia llm_extracted

View patch