JPCERT-AT-2025-0004
                                                             JPCERT/CC
                                                            2025-02-12

                 <<< JPCERT/CC Alert 2025-02-12 >>>

         Microsoft Releases February 2025 Security Updates

       https://www.jpcert.or.jp/english/at/2025/at250004.html


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

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

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-2025-21391
    Windows Storage Elevation of Privilege Vulnerability
    https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-21391

    CVE-2025-21418
    Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
    https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-21418


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/