CVE-2024-21403

Name: CVE-2024-21403
Creator: NVD / NIST
Published: 2024-02-13T18:15:58.773+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9/10EPSS 1.34%

Last modified Jun 17, 2026

CVE-2024-21403 is a critical-severity vulnerability rated 9/10 on the CVSS scale. Microsoft Azure Kubernetes Service Confidential Container Elevation of Privilege Vulnerability. EPSS estimates a 1.34% chance of exploitation in the next 30 days.

Description

Microsoft Azure Kubernetes Service Confidential Container Elevation of Privilege Vulnerability

Metrics

CVSS 3.1

9/10

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

EPSS Probability

1.34%

67.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-552

Affected Software

Vendor	Product	Versions
Microsoft	Azure Kubernetes Service	All versions

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21403Patch, Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21403Patch, Vendor Advisory

Timeline

Published: Feb 13, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-21403?

Microsoft Azure Kubernetes Service Confidential Container Elevation of Privilege Vulnerability

How severe is CVE-2024-21403?

CVE-2024-21403 has a CVSS score of 9/10 (CRITICAL severity). The EPSS model estimates a 1.34% probability of exploitation in the next 30 days.

How do I fix CVE-2024-21403?

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-2024-21403?

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

Scan your code now

Source: NVD / NIST