Post Date: 2026/06/17

【Vulnerability Alert】Microsoft Releases June 2026 Security Updates

  • Subject: 【Vulnerability Alert】Microsoft Releases June 2026 Security Updates


  • Description:
    • Forwarded from National Information Security Sharing and Analysis Center Security Alert NISAC-200-202606-00000005
    • Microsoft has released its security updates for June 2026, patching a total of 204 vulnerabilities, including 18 high-risk vulnerabilities. Please confirm and apply the patches as soon as possible.
    • 【Products with High-Risk Vulnerabilities】
    • Active Directory Domain Services
    • Azure HorizonDB
    • Azure Stack Edge
    • Microsoft Azure Kubernetes Service
    • Microsoft Dynamics 365 (on-premises)
    • Microsoft Exchange Online
    • Microsoft Exchange Server
    • Microsoft Office SharePoint
    • Nuance PowerScribe
    • Remote Desktop

Client

  • Visual Studio Code
  • Windows DHCP Client
  • Windows DHCP Server
  • Windows HTTP.sys
  • Windows Kernel
  • Windows TCP/IP
  • 【Other Affected Products】
  • .NET
  • ASP.NET Core
  • Copilot Chat (Microsoft Edge)
  • Function Discovery Service (fdwsd.dll)
  • GitHub Copilot and Visual Studio Code
  • HTTP/2
  • Linux MANA Driver
  • M365 Copilot
  • Microsoft Azure Attestation service and Device Health Attestation Service
    • Microsoft Bing
    • Microsoft Copilot
    • Microsoft Defender for Endpoint
    • Microsoft Graph
    • Microsoft Graphics Component
    • Microsoft Kinect
    • Microsoft Live Share Canvas SDK
    • Microsoft Office
    • Microsoft Office Click-To-Run
    • Microsoft Office Excel
    • Microsoft Office Project
    • Microsoft Office Word
    • Microsoft

PC Manager

  • Microsoft PowerToys
  • Microsoft Teams for Android
  • Microsoft UxTheme Library (uxtheme.dll)
  • Microsoft Windows DNS
  • Office for Android
  • Role: Windows Hyper-V
  • UI Automation Manager (uiamanager.dll)
  • Universal Plug and Play (upnp.dll)
  • Windows Administrator Protection
  • Windows Ancillary Function Driver for WinSock
  • Windows Application Identity (AppID) Subsystem
  • Windows BitLocker
  • Windows Bluetooth

Port Driver

  • Windows Bluetooth Service
  • Windows Boot Manager
  • Windows Collaborative Translation Framework
  • Windows Common Log File System Driver
  • Windows Cryptographic Services
  • Windows Deployment Services
  • Windows DWM Core Library
  • Windows Hotpatch Monitoring Service
  • Windows Hyper-V
  • Windows Internet (wininet.dll)
  • Windows Kerberos
  • Windows Kernel-Mode Drivers
  • Windows Mark of the Web (MOTW)
  • Windows Media
    • Windows Narrator Braille
    • Windows Network Controller (NC) Host Agent
    • Windows NT OS Kernel
    • Windows NTFS
    • Windows NTLM
    • Windows Performance Monitor
    • Windows Program Compatibility Assistant Service
    • Windows Projected File System Filter Driver
    • Windows Push Notifications
    • Windows RDP
    • Windows SDK
    • Windows Secure Boot
    • Windows

Shell

  • Windows Storage
  • Windows Telephony Service
  • Windows UEFI
  • Windows Universal Disk Format File System Driver (UDFS)
  • Windows Win32K - GRFX
  • Winlogon
  • Affected Platforms:
  • Active Directory Domain Services
  • Azure HorizonDB
  • Azure Stack Edge
  • Microsoft Azure Kubernetes Service
  • Microsoft Dynamics 365 (on-premises)
  • Microsoft Exchange Online
  • Microsoft Exchange Server
  • Microsoft Office SharePoint
  • Nuance PowerScribe
  • Remote Desktop Client
  • Visual Studio Code
  • Windows DHCP Client
  • Windows DHCP Server
  • Windows HTTP.sys
  • Windows Kernel
  • Windows TCP/IP
  • Action Required:
  • Microsoft has officially released security patches for these vulnerabilities. Organizations are advised to contact their system maintenance vendors or refer to the following link: https://msrc.microsoft.com/update-guide/releaseNote/2026-Jun
  • References:
  1. https://msrc.microsoft.com/update-guide/releaseNote/2026-Jun

Computer and Communication Center
Network Systems Division