CVE-2024-21427

Name: CVE-2024-21427
Creator: NVD / NIST
Published: 2024-03-12T17:15:51.233+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.52%

Last modified Jun 17, 2026

CVE-2024-21427 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Windows Kerberos Security Feature Bypass Vulnerability. EPSS estimates a 1.52% chance of exploitation in the next 30 days.

Description

Windows Kerberos Security Feature Bypass Vulnerability

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.52%

71.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Microsoft	Windows Server 2012	r2
Microsoft	Windows Server 2016	< 10.0.14393.6897
Microsoft	Windows Server 2019	< 10.0.17763.5696
Microsoft	Windows Server 2022	< 10.0.20348.2402
Microsoft	Windows Server 2022 23h2	< 10.0.25398.830

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21427Patch, Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21427Patch, Vendor Advisory

Timeline

Published: Mar 12, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-21427?

Windows Kerberos Security Feature Bypass Vulnerability

How severe is CVE-2024-21427?

CVE-2024-21427 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.52% probability of exploitation in the next 30 days.

How do I fix CVE-2024-21427?

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-2024-21427?

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

Scan your code now

Source: NVD / NIST