CVE-2020-14336Network attack vector

Cluster denial of service via retained NET_RAW

Published Jun 2, 2021 · Updated Aug 4, 2024

Resource management flaw in Red Hat OpenShift Container Platform 4.6 and 4.5.16 allows remote authenticated users to interrupt a cluster. The restricted SCC retains NET_RAW in its default capability set, so an admitted pod can craft custom network packets without additional capability grants. The attacker must be able to deploy pods; default OpenShift SDN isolation makes the attack impractical, while SR-IOV deployments face greater exposure.

CVSS severity6.5
Medium
EPSS probability0.93%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Resource management flaw in Red Hat OpenShift Container Platform 4.6 and 4.5.16 allows remote authenticated users to interrupt a cluster. The restricted SCC retains NET_RAW in its default capability set, so an admitted pod can craft custom network packets without additional capability grants. The attacker must be able to deploy pods; default OpenShift SDN isolation makes the attack impractical, while SR-IOV deployments face greater exposure.

The record

CVE
CVE-2020-14336
Published
Jun 2, 2021
Updated
Aug 4, 2024
Vendor
Red Hat
Product
Red Hat OpenShift Container Platform
Classifications
CWE-770, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 2, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Red Hat OpenShift Container Platform 4.6 and Red Hat OpenShift Container Platform 4.5.16

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Red Hat · Red Hat OpenShift Container Platformversion=Red Hat OpenShift Container Platform 4.6 and Red Hat OpenShift Container Platform 4.5.16

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:N/I:N/A:P
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo