CVE-2023-6476

Name: CVE-2023-6476
Creator: NVD / NIST
Published: 2024-01-09T22:15:43.61+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.86%

Last modified Jun 17, 2026

CVE-2023-6476 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A flaw was found in CRI-O that involves an experimental annotation leading to a container being unconfined. This may allow a pod to specify and get any amount of memory/cpu, circumventing the kubernetes scheduler and potentially resulting in a denial of service in the node.. EPSS estimates a 0.86% chance of exploitation in the next 30 days.

Description

A flaw was found in CRI-O that involves an experimental annotation leading to a container being unconfined. This may allow a pod to specify and get any amount of memory/cpu, circumventing the kubernetes scheduler and potentially resulting in a denial of service in the node.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.86%

53.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Redhat	Openshift Container Platform	3.11
Redhat	Openshift Container Platform	4.13
Redhat	Openshift Container Platform	4.14

References

https://access.redhat.com/errata/RHSA-2024:0195Vendor Advisory
https://access.redhat.com/errata/RHSA-2024:0207Vendor Advisory
https://access.redhat.com/security/cve/CVE-2023-6476Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2253994Issue Tracking, Vendor Advisory
https://access.redhat.com/errata/RHSA-2024:0195Vendor Advisory
https://access.redhat.com/errata/RHSA-2024:0207Vendor Advisory
https://access.redhat.com/security/cve/CVE-2023-6476Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2253994Issue Tracking, Vendor Advisory

Timeline

Published: Jan 9, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-6476?

How severe is CVE-2023-6476?

CVE-2023-6476 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.86% probability of exploitation in the next 30 days.

How do I fix CVE-2023-6476?

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-2023-6476?

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

Scan your code now

Source: NVD / NIST