CVE-2023-28234

Name: CVE-2023-28234
Creator: NVD / NIST
Published: 2023-04-11T21:15:23.787+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.73%

Last modified Jun 17, 2026

CVE-2023-28234 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Windows Secure Channel Denial of Service Vulnerability. EPSS estimates a 1.73% chance of exploitation in the next 30 days.

Description

Windows Secure Channel Denial of Service Vulnerability

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

1.73%

74.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Microsoft	Windows 11 21h2	< 10.0.22000.1817
Microsoft	Windows 11 22h2	< 10.0.22621.1555
Microsoft	Windows Server 2022	All versions

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28234Patch, Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28234Patch, Vendor Advisory

Timeline

Published: Apr 11, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-28234?

Windows Secure Channel Denial of Service Vulnerability

How severe is CVE-2023-28234?

CVE-2023-28234 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.73% probability of exploitation in the next 30 days.

How do I fix CVE-2023-28234?

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-2023-28234?

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

Scan your code now

Source: NVD / NIST