What is CVE-2024-21342?

CVE-2024-21342 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Windows DNS Client Denial of Service Vulnerability

Which CVE IDs does CVE-2024-21342 cover?

CVE-2024-21342 covers the following CVE IDs: CVE-2024-21342. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2024-21342?

CVE-2024-21342 has a CVSS v3 base score of 7.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2024-21342?

CVE-2024-21342 affects 5 products, including: Windows 11 Version 22H2 for ARM64-based Systems; Windows 11 Version 22H2 for x64-based Systems; Windows 11 Version 23H2 for ARM64-based Systems; Windows 11 Version 23H2 for x64-based Systems; Windows Server 2022, 23H2 Edition (Server Core installation).

CVE-2024-21342HighCVSS 7.5

Windows DNS Client Denial of Service Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

February 13, 2024

Last Modified

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🔗 CVE IDs covered (1)

CVE-2024-21342 →

🎯 Affected products5

Windows 11 Version 22H2 for ARM64-based Systems
Windows 11 Version 22H2 for x64-based Systems
Windows 11 Version 23H2 for ARM64-based Systems
Windows 11 Version 23H2 for x64-based Systems
Windows Server 2022, 23H2 Edition (Server Core installation)

✅ Remediation

KB5034765 (Security Update) — fixed build 10.0.22621.3155 KB5034765 (Security Update) — fixed build 10.0.22631.3155 KB5034769 (Security Update) — fixed build 10.0.25398.709

🔗 References (5)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21342
patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5034765
referencehttps://support.microsoft.com/help/5034765
patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5034769
referencehttps://support.microsoft.com/help/5034769