JPCERT-AT-2025-0012
                                                             JPCERT/CC
                                                            2025-05-14

                 <<< JPCERT/CC Alert 2025-05-14 >>>

         Microsoft Releases May 2025 Security Updates

       https://www.jpcert.or.jp/english/at/2025/at250012.html


I. Overview
Microsoft has released May 2025 Security Updates to address the
vulnerabilities in their products. Remote attackers leveraging
these vulnerabilities may be able to execute arbitrary code.

    Microsoft Corporation
    May 2025 Security Updates
    https://msrc.microsoft.com/update-guide/en-us/releaseNote/2025-May

According to Microsoft, among the vulnerabilities, the following
vulnerability 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-2025-30397
    Scripting Engine Memory Corruption Vulnerability
    https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-30397

    CVE-2025-30400
    Microsoft DWM Core Library Elevation of Privilege Vulnerability
    https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-30400

    CVE-2025-32701
    Windows Common Log File System Driver Elevation of Privilege Vulnerability
    https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-32701

    CVE-2025-32706
    Windows Common Log File System Driver Elevation of Privilege Vulnerability
    https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-32706

    CVE-2025-32709
    Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
    https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-32709


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 (Early Warning Group)
MAIL: ew-info@jpcert.or.jp
https://www.jpcert.or.jp/english/