JPCERT-AT-2022-0010
                                                             JPCERT/CC
                                                            2022-04-13

                 <<< JPCERT/CC Alert 2022-04-13 >>>

           Microsoft Releases April 2022 Security Updates

       https://www.jpcert.or.jp/english/at/2022/at220010.html


I. Overview
Microsoft has released April 2022 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
    March 2022 Security Updates
    https://msrc.microsoft.com/update-guide/en-us/releaseNote/2022-Apr

    Microsoft Corporation
    Microsoft Security Updates for April 2022 (Monthly) (Japanese)
    https://msrc-blog.microsoft.com/2022/04/12/202204-security-updates/

According to Microsoft, among these vulnerabilities, the following
vulnerability has been confirmed to be exploited in the wild. Please
consider applying the security update programs as soon as possible.

    CVE-2022-24521
    Windows Common Log File System Driver Elevation of Privilege Vulnerability
    https://msrc.microsoft.com/update-guide/en-us/vulnerability/CVE-2022-24521


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/