CVE-2022-21907: HTTP Protocol Stack Remote Code Execution Vulnerability

Published Jan 11, 2022
·
Updated

HTTP Protocol Stack Remote Code Execution Vulnerability.

Affected Software

35 affected componentsFixes available
Microsoft Windows Server=20H2
Microsoft Windows Server 2019
Microsoft Windows Server 2019
Microsoft Windows 11=21H2
Microsoft Windows 11=21H2
Microsoft Windows Server 2022
Microsoft Windows Server 2022
Microsoft Windows 10=20H2
Microsoft Windows 10=20H2
Microsoft Windows 10=1809
Microsoft Windows 10=1809
Microsoft Windows 10=1809
Microsoft Windows 10=21H1
Microsoft Windows 10=21H1
Microsoft Windows 10=21H1
Microsoft Windows 10=21H2
Microsoft Windows 10=21H2
Microsoft Windows 10=21H2
Microsoft Windows 10=20h2
Microsoft Windows 10=20h2
Microsoft Windows 10=20h2
Microsoft Windows 10=21h1
Microsoft Windows 10=21h1
Microsoft Windows 10=21h1
Microsoft Windows 10=21h2
Microsoft Windows 10=21h2
Microsoft Windows 10=21h2
Microsoft Windows 10=1809
Microsoft Windows 10=1809
Microsoft Windows 10=1809
Microsoft Windows 11
Microsoft Windows 11
Microsoft Windows Server=20h2
Microsoft Windows Server=2022
Microsoft Windows Server 2019

Event History

Jan 11, 2022
CVE Published
via Microsoft·08:00 AM
Data Sourced
via Microsoft·08:00 AM
DescriptionSeverityWeakness
CVE Published
via MITRE·08:23 PM
Data Sourced
via MITRE·08:23 PM
DescriptionSeverity

Frequently Asked Questions

1

What is the severity of CVE-2022-21907?

CVE-2022-21907 has a critical severity level as it allows remote code execution through the HTTP Protocol Stack.

2

How do I fix CVE-2022-21907?

To mitigate CVE-2022-21907, apply the required security patches provided by Microsoft, specifically KB5009543, KB5009555, KB5009557, or KB5009566 based on your system version.

3

Which Microsoft Windows versions are affected by CVE-2022-21907?

CVE-2022-21907 affects multiple versions of Microsoft Windows 10, Windows 11, and Windows Server, including versions 1809, 20H2, 21H1, and 21H2.

4

Is there a workaround for CVE-2022-21907?

Currently, the primary method for addressing CVE-2022-21907 is to install the latest patches, as there are no noted workarounds.

5

What are the implications of CVE-2022-21907?

CVE-2022-21907 could potentially allow an attacker to execute arbitrary code on the affected system, leading to unauthorized access or control.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203