JPCERT-AT-2023-0019
                                                             JPCERT/CC
                                                            2023-09-13

                 <<< JPCERT/CC Alert 2023-09-13 >>>

         Microsoft Releases September 2023 Security Updates

       https://www.jpcert.or.jp/english/at/2023/at230019.html


I. Overview
Microsoft has released September 2023 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
    September 2023 Security Updates
    https://msrc.microsoft.com/update-guide/en-us/releaseNote/2023-Sep

    Microsoft Corporation
    Microsoft Security Updates for September 2023 (Monthly) (Japanese)
    https://msrc.microsoft.com/blog/2023/09/202309-security-update/

According to Microsoft, among the vulnerabilities, the following
vulnerabilities have been confirmed to be exploited in the wild. Please
consider applying the security update programs by referring to the
information provided by Microsoft.

    CVE-2023-36761
    Microsoft Word Information Disclosure Vulnerability
    https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36761

    CVE-2023-36802
    Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability
    https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36802


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/