JPCERT-AT-2026-0012
                                                             JPCERT/CC
                                                            2026-05-13

                 <<< JPCERT/CC Alert 2026-05-13 >>>

         Microsoft Releases May 2026 Security Updates

       https://www.jpcert.or.jp/english/at/2026/at260012.html


I. Overview
Microsoft has released May 2026 Security Updates to address the
vulnerabilities in their products. Remote attackers leveraging
these vulnerabilities may be able to execute arbitrary code. Please
consider applying the security update programs by referring to
the information provided by Microsoft.


    Microsoft Corporation
    May 2026 Security Updates
    https://msrc.microsoft.com/update-guide/en-us/releaseNote/2026-May


II. Solution
Please apply the security update programs through Microsoft Update, Windows
Update, etc.

    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/

If you have any information regarding this alert, please contact
JPCERT/CC.

======================================================================
JPCERT Coordination Center (Cyber Security Coordination Group)
MAIL: ew-info@jpcert.or.jp
https://www.jpcert.or.jp/english/