Forwarded from National Information Security Analysis Center Security Information Alert NISAC-200-202609-00000017

[Content Description]
Microsoft released its September 115 security updates, patching a total of 978 vulnerabilities, including 193 high-risk vulnerabilities and 2 exploited vulnerabilities. Please confirm and apply patches as soon as possible.

[Affected Platforms]
.NET and Visual Studio
Azure AI Language
Azure Arc
Copilot Studio
Entra ID
Graphic Fonts
Microsoft Azure Active Directory B2C
Microsoft Dynamics 365
Microsoft Edge (Chromium-based)
Microsoft Entra ID

[Recommended Measures]
Microsoft has currently released fixes for the vulnerabilities. Agencies may contact system maintenance vendors or refer to the following link: https://msrc.microsoft.com/update-guide/releaseNote/2026-Sep

[References]
1. https://msrc.microsoft.com/update-guide/releaseNote/2026-Sep