Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2020-8569

22
FAUCET Score

CVE-2020-8569 describes a denial-of-service vulnerability in Kubernetes CSI snapshot-controller versions prior to v2.1.3 and v3.0.2. An attacker with low privileges can trigger a panic and an endless crashloop in the snapshot-controller by creating a VolumeSnapshot custom resource referencing a non-existent PersistentVolumeClaim without a VolumeSnapshotClass. This medium-severity vulnerability (CVSS 6.5) primarily impacts the volume snapshot feature, preventing users from taking or deleting snapshots, but does not affect other Kubernetes functionalities. There is no known active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.1.0, < 2.1.3CPE matchmatch criteria
cpe:2.3:a:kubernetes:container_storage_interface_snapshotter:*:*:*:*:*:*:*:*
>= 3.0.0, < 3.0.2CPE matchmatch criteria
cpe:2.3:a:kubernetes:container_storage_interface_snapshotter:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.27%
Probability of exploitation in next 30 days
EPSS Percentile
81.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0227 is in the 93rd percentile among its peer group of 21,977 CVEs.

Social Chatter

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

Remediation

Patch Available

Vendor Patches (2)

gopatch availablevia ghsa
Product: github.com/kubernetes-csi/external-snapshotter/v2Fixed in: 2.1.3
gopatch availablevia ghsa
Product: github.com/kubernetes-csi/external-snapshotter/v3Fixed in: 3.0.2

Vendor Advisories (2)

goGHSA-hwrr-rhmm-vcvfmedium

NULL Pointer Dereference in Kubernetes CSI snapshot-controller

Feb 15, 2022
redhatCVE-2020-8569Moderate

kubernetes-csi: NULL pointer dereference in snapshot-controller when processing a VolumeSnapshot custom resource

Nov 3, 2020

References

github.com / kubernetes-csi/external-snapshotter/issues/380
ExploitThird Party Advisory
groups.google.com / g/kubernetes-security-announce/c/1EzCr1qUxxU
Mailing ListThird Party Advisory