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Fencer Vulns
medium 6.5

CVE-2020-14336 json

A flaw was found in the Restricted Security Context Constraints (SCC), where it allows pods to craft custom network packets.

published 2021-06-02 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-6483

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits
0
none known

Summary

A flaw was found in the Restricted Security Context Constraints (SCC), where it allows pods to craft custom network packets. This flaw allows an attacker to cause a denial of service attack on an OpenShift Container Platform cluster if they can deploy pods. The highest threat from this vulnerability is to system availability.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-14336 updated cvss 3.1

openshift: restricted SCC allows pods to craft custom network packets

  • Red Hat OpenShift Container Platform 3.11 atomic-openshift, atomic-openshift-pod, atomic-openshift-node, atomic-openshift-tests, atomic-openshift-master, atomic-openshift-clients, +7 more
    affected: workaround, no fix available “Fix deferred”
  • Red Hat OpenShift Container Platform 4.5 openshift4/ose-machine-config-operator v4.5.0-202010160047.p0
    fixed: vendor fix RHSA-2020:4320
  • Red Hat OpenShift Container Platform 4.6 openshift4/ose-machine-config-operator v4.6.0-202010220220.p0
    fixed: vendor fix RHSA-2020:4298
  • Red Hat OpenShift Container Platform 4.6 openshift4/ose-cli v4.6.0-202010080605.p0, openshift4/ose-ptp v4.6.0-202010200139.p0, openshift4/ose-etcd v4.6.0-202010061132.p0, openshift4/ose-tests v4.6.0-202010120952.p0, openshift4/ose-console v4.6.0-202010100121.p0, openshift4/ose-coredns v4.6.0-202010061132.p0, +79 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.93% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P

Affected products

  • n/a Openshift

Classification

Weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.