What is CVE-2023-28234?

CVE-2023-28234 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Windows Secure Channel Denial of Service Vulnerability

Which CVE IDs does CVE-2023-28234 cover?

CVE-2023-28234 covers the following CVE IDs: CVE-2023-28234. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2023-28234?

CVE-2023-28234 has a CVSS v3 base score of 7.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2023-28234?

CVE-2023-28234 affects 6 products, including: Windows 11 Version 22H2 for ARM64-based Systems; Windows 11 Version 22H2 for x64-based Systems; Windows 11 version 21H2 for ARM64-based Systems; Windows 11 version 21H2 for x64-based Systems; Windows Server 2022; and others — see the full list on the advisory page.

CVE-2023-28234HighCVSS 7.5

Windows Secure Channel Denial of Service Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

April 11, 2023

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2023-28234 →

📋 Description

Does this vulnerability affect all versions of TLS? No. Only those devices running TLS 1.3 are affected. For more information on supported TLS implementations please visit: https://learn.microsoft.com/en-us/windows/win32/secauthn/protocols-in-tls-ssl--schannel-ssp-

🎯 Affected products6

Windows 11 Version 22H2 for ARM64-based Systems
Windows 11 Version 22H2 for x64-based Systems
Windows 11 version 21H2 for ARM64-based Systems
Windows 11 version 21H2 for x64-based Systems
Windows Server 2022
Windows Server 2022 (Server Core installation)

✅ Remediation

KB5025230 (Security Update) — fixed build 10.0.20348.1668 KB5025224 (Security Update) — fixed build 10.0.22000.1817 KB5025239 (Security Update) — fixed build 10.0.22621.1555

🔗 References (7)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28234
patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5025230
referencehttps://support.microsoft.com/help/5025230
patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5025224
referencehttps://support.microsoft.com/help/5025224
patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5025239
referencehttps://support.microsoft.com/help/5025239