JPCERT-AT-2026-0005 JPCERT/CC 2026-03-11 I. Overview Microsoft has released March 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 March 2026 Security Updates https://msrc.microsoft.com/update-guide/en-us/releaseNote/2026-Mar 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/ Top