JPCERT-AT-2021-0048
JPCERT/CC
2021-11-10
Microsoft Corporation
November 2021 Security Updates
https://msrc.microsoft.com/update-guide/en-us/releaseNote/2021-Nov
Microsoft Corporation
Microsoft Security Updates for November 2021 (Monthly) (Japanese)
https://msrc-blog.microsoft.com/2021/11/09/202111-security-updates/
According to Microsoft, among these vulnerabilities, the following two vulnerabilities have been confirmed to be exploited in the wild. Please consider applying the security update programs as soon as possible.
CVE-2021-42292
Microsoft Excel Security Feature Bypass Vulnerability
https://msrc.microsoft.com/update-guide/en-us/vulnerability/CVE-2021-42292
CVE-2021-42321
Microsoft Exchange Server Remote Code Execution Vulnerability
https://msrc.microsoft.com/update-guide/en-us/vulnerability/CVE-2021-42321
Microsoft Update Catalog
https://www.catalog.update.microsoft.com/
Windows Update: FAQ
https://support.microsoft.com/en-us/help/12373/windows-update-faq
Microsoft Corporation
Release Notes
https://msrc.microsoft.com/update-guide/releaseNote
If you have any information regarding this alert, please contact JPCERT/CC.
JPCERT Coordination Center (Early Warning Group)
MAIL: ew-info@jpcert.or.jp
https://www.jpcert.or.jp/english/
JPCERT/CC
2021-11-10
I. Overview
Microsoft has released November 2021 Security Updates to address the vulnerabilities in their products. Remote attackers leveraging these vulnerabilities may be able to execute arbitrary code. It is recommended to check the information provided by Microsoft and apply the updates.Microsoft Corporation
November 2021 Security Updates
https://msrc.microsoft.com/update-guide/en-us/releaseNote/2021-Nov
Microsoft Corporation
Microsoft Security Updates for November 2021 (Monthly) (Japanese)
https://msrc-blog.microsoft.com/2021/11/09/202111-security-updates/
According to Microsoft, among these vulnerabilities, the following two vulnerabilities have been confirmed to be exploited in the wild. Please consider applying the security update programs as soon as possible.
CVE-2021-42292
Microsoft Excel Security Feature Bypass Vulnerability
https://msrc.microsoft.com/update-guide/en-us/vulnerability/CVE-2021-42292
CVE-2021-42321
Microsoft Exchange Server Remote Code Execution Vulnerability
https://msrc.microsoft.com/update-guide/en-us/vulnerability/CVE-2021-42321
II. Solution
Please apply the security update programs through Microsoft Update,Windows Update, etc. as soon as possible.Microsoft Update Catalog
https://www.catalog.update.microsoft.com/
Windows Update: FAQ
https://support.microsoft.com/en-us/help/12373/windows-update-faq
III. References
Microsoft Corporation
Release Notes
https://msrc.microsoft.com/update-guide/releaseNote
If you have any information regarding this alert, please contact JPCERT/CC.
JPCERT Coordination Center (Early Warning Group)
MAIL: ew-info@jpcert.or.jp
https://www.jpcert.or.jp/english/