JPCERT-AT-2025-0002
JPCERT/CC
2025-01-15
Microsoft Corporation
January 2025 Security Updates
https://msrc.microsoft.com/update-guide/en-us/releaseNote/2025-Jan
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-2025-21333
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-21333
CVE-2025-21334
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-21334
CVE-2025-21335
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-21335
Microsoft Update Catalog
https://www.catalog.update.microsoft.com/
Windows Update: FAQ
https://support.microsoft.com/en-us/help/12373/windows-update-faq
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/
JPCERT/CC
2025-01-15
I. Overview
Microsoft has released January 2025 Security Updates to address the vulnerabilities in their products. Remote attackers leveraging these vulnerabilities may be able to execute arbitrary code.Microsoft Corporation
January 2025 Security Updates
https://msrc.microsoft.com/update-guide/en-us/releaseNote/2025-Jan
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-2025-21333
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-21333
CVE-2025-21334
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-21334
CVE-2025-21335
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-21335
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/