Overview
On June 9, NSFOCUS CERT detected that Microsoft released a security update patch for June, fixing 206 security issues involving widely used products such as Windows, Microsoft Office, Microsoft Exchange Server, Visual Studio Code, Azure, etc., including remote code execution vulnerabilities, High-risk vulnerability types such as information leakage vulnerabilities and privilege escalation vulnerabilities.
Of the vulnerabilities fixed in Microsoft’s monthly update this month, 38 were critical and 168 were important. Please update the patch as soon as possible for protection. For a complete list of vulnerabilities, please refer to the appendix.
Reference link: https://msrc.microsoft.com/update-guide/releaseNote/2026-Jun
Key Vulnerabilities
Based on the product popularity and vulnerability importance, this update contains vulnerabilities with greater impact. Relevant users are requested to pay special attention:
Remote Desktop Client remote code execution vulnerability (CVE-2026-47289):
A remote code execution vulnerability exists in the remote desktop client. Since there is a stack buffer overflow when processing response data from a malicious server, an unauthenticated attacker can build a malicious remote desktop server to induce users to initiate connections and process malicious certificates when connecting to trigger the vulnerability, thereby executing arbitrary code with the user permissions of the client. CVSS score 8.8.
Official announcement link: https://msrc.microsoft.com/update-guide/zh-cn/vulnerability/CVE-2026-47289
Microsoft Office Remote Code Execution Vulnerability (CVE-2026-45461/CVE-2026-45472/CVE-2026-45474):
A use-after-free vulnerability exists in Microsoft Office, where an unauthenticated attacker can trick users into previewing or opening a specially crafted malicious document that causes arbitrary code execution. CVSS score 8.4.
Official announcement links:
https://msrc.microsoft.com/update-guide/zh-cn/vulnerability/CVE-2026-45461
https://msrc.microsoft.com/update-guide/zh-cn/vulnerability/CVE-2026-45472
https://msrc.microsoft.com/update-guide/zh-cn/vulnerability/CVE-2026-45474
Windows Kernel Remote Code Execution Vulnerability (CVE-2026-45657):
A remote code execution vulnerability exists in the Windows Kernel. Due to post-release use and stack buffer overflow issues when the kernel processes objects, an unauthenticated attacker can trigger a defect in the Windows kernel’s processing of specific TCP/IP data through a specially crafted request, thereby executing arbitrary code with system-level privileges. CVSS score 9.8
Official announcement link: https://msrc.microsoft.com/update-guide/zh-cn/vulnerability/CVE-2026-45657
HTTP.sys Remote Code Execution Vulnerability (CVE-2026-47291):
A remote code execution vulnerability exists in HTTP.sys, where an unauthenticated attacker can trigger memory corruption by constructing a specially crafted HTTP packet to execute arbitrary code on the target system due to integer overflow or wraparound issues in the HTTP protocol stack when processing specially crafted requests. CVSS score 9.8.
Official announcement link: https://msrc.microsoft.com/update-guide/zh-cn/vulnerability/CVE-2026-47291
DHCP Client Service Remote Code Execution Vulnerability (CVE-2026-44815):
A remote code execution vulnerability exists in the DHCP client service. Due to a stack buffer overflow when the DHCP client processes network data, an unauthenticated attacker can trigger memory corruption through a specially crafted DHCP response packet, thereby executing arbitrary code on the target device. CVSS score 9.8.
Official announcement link: https://msrc.microsoft.com/update-guide/zh-cn/vulnerability/CVE-2026-44815
Windows Graphics Component Remote Code Execution Vulnerability (CVE-2026-44803/CVE-2026-44812):
There is a remote code execution vulnerability in the Windows graphics component. Due to the integer overflow or wraparound problem when the graphics component processes specially crafted images or files, an unauthenticated attacker can trigger the vulnerability by tricking users into opening maliciously constructed files or visiting malicious websites. Users previewing panes or opening files will cause arbitrary code execution. CVSS score 7.8.
Official announcement links:
https://msrc.microsoft.com/update-guide/zh-cn/vulnerability/CVE-2026-44803
https://msrc.microsoft.com/update-guide/zh-cn/vulnerability/CVE-2026-44812
Windows Hyper-V Remote Code Execution Vulnerability (CVE-2026-45607/CVE-2026-45641):
A remote code execution vulnerability exists in Windows Hyper-V. Due to out-of-bounds read and type obfuscation issues in Hyper-V, an authenticated attacker on a VM can execute code on the host server by sending specially crafted file operation requests to the hardware resources of the virtual machine. CVSS score 8.4.
Official announcement links:
https://msrc.microsoft.com/update-guide/zh-cn/vulnerability/CVE-2026-45607
https://msrc.microsoft.com/update-guide/zh-cn/vulnerability/CVE-2026-45641
Scope of Impact
The following are the affected product versions of some key vulnerabilities. For the scope of products affected by other vulnerabilities, please refer to the official announcement link.
| Vulnerability Number | Affected product versions |
|---|---|
| CVE-2026-47289 | Windows App Client for Windows Desktop Windows Server 2012 R2 (Server Core installation) Windows Server 2012 R2 Windows Server 2012 (Server Core installation) Windows Server 2012 Windows Server 2016 (Server Core installation) Windows Server 2016 Windows 10 Version 1607 for x64-based Systems Windows 10 Version 1607 for 32-bit Systems Windows 11 Version 26H1 for ARM64-based Systems Windows 11 version 26H1 for x64-based Systems Windows Server 2025 Windows 11 Version 24H2 for x64-based Systems Windows 11 Version 24H2 for ARM64-based Systems Windows 11 Version 23H2 for x64-based Systems Windows 11 Version 23H2 for ARM64-based Systems Windows 11 Version 25H2 for x64-based Systems Windows 11 Version 25H2 for ARM64-based Systems Windows Server 2025 (Server Core installation) Windows 10 Version 22H2 for 32-bit Systems Windows 10 Version 22H2 for ARM64-based Systems Windows 10 Version 22H2 for x64-based Systems Windows 10 Version 21H2 for x64-based Systems Windows 10 Version 21H2 for ARM64-based Systems Windows 10 Version 21H2 for 32-bit Systems Windows Server 2022 (Server Core installation) Windows Server 2022 Windows Server 2019 (Server Core installation) Windows Server 2019 Windows 10 Version 1809 for x64-based Systems Windows 10 Version 1809 for 32-bit Systems |
| CVE-2026-45461 CVE-2026-45472 CVE-2026-45474 | Microsoft Office 2016 (64-bit edition) Microsoft Office 2016 (32-bit edition) Microsoft Office LTSC for Mac 2024 Microsoft Office LTSC 2024 for 64-bit editions Microsoft Office LTSC 2024 for 32-bit editions Microsoft Office LTSC 2021 for 32-bit editions Microsoft Office LTSC 2021 for 64-bit editions Microsoft Office LTSC for Mac 2021 Microsoft 365 Apps for Enterprise for 64-bit Systems Microsoft 365 Apps for Enterprise for 32-bit Systems Microsoft Office 2019 for 64-bit editions Microsoft Office 2019 for 32-bit editions Microsoft Office 365 for Mac Microsoft Office for Android |
| CVE-2026-45657 | Windows 11 Version 23H2 for ARM64-based Systems Windows 11 Version 23H2 for x64-based Systems Windows 11 Version 24H2 for ARM64-based Systems Windows 11 Version 24H2 for x64-based Systems Windows 11 Version 25H2 for ARM64-based Systems Windows 11 Version 25H2 for x64-based Systems Windows 11 Version 26H1 for ARM64-based Systems Windows 11 version 26H1 for x64-based Systems Windows Server 2022 Windows Server 2022 (Server Core installation) Windows Server 2025 Windows Server 2025 (Server Core installation) |
| CVE-2026-47291 CVE-2026-44815 | Windows 10 Version 1607 for 32-bit Systems Windows 10 Version 1607 for x64-based Systems Windows 10 Version 1809 for 32-bit Systems Windows 10 Version 1809 for x64-based Systems Windows 10 Version 21H2 for 32-bit Systems Windows 10 Version 21H2 for ARM64-based Systems Windows 10 Version 21H2 for x64-based Systems Windows 10 Version 22H2 for 32-bit Systems Windows 10 Version 22H2 for ARM64-based Systems Windows 10 Version 22H2 for x64-based Systems Windows 11 Version 23H2 for ARM64-based Systems Windows 11 Version 23H2 for x64-based Systems Windows 11 Version 24H2 for ARM64-based Systems Windows 11 Version 24H2 for x64-based Systems Windows 11 Version 25H2 for ARM64-based Systems Windows 11 Version 25H2 for x64-based Systems Windows 11 Version 26H1 for ARM64-based Systems Windows 11 version 26H1 for x64-based Systems Windows Server 2012 Windows Server 2012 (Server Core installation) Windows Server 2012 R2 Windows Server 2012 R2 (Server Core installation) Windows Server 2016 Windows Server 2016 (Server Core installation) Windows Server 2019 Windows Server 2019 (Server Core installation) Windows Server 2022 Windows Server 2022 (Server Core installation) Windows Server 2025 Windows Server 2025 (Server Core installation) |
| CVE-2026-44803 CVE-2026-44812 | Microsoft Word for Android Microsoft PowerPoint for Android Microsoft Excel for Android Windows Server 2012 R2 (Server Core installation) Windows Server 2012 R2 Windows Server 2012 (Server Core installation) Windows Server 2012 Windows Server 2016 (Server Core installation) Windows Server 2022 (Server Core installation) Windows Server 2022 Windows Server 2019 (Server Core installation) Windows Server 2019 Windows 10 Version 1809 for x64-based Systems Windows 10 Version 1809 for 32-bit Systems Windows Server 2016 Windows 10 Version 1607 for x64-based Systems Windows 10 Version 1607 for 32-bit Systems Windows 11 Version 26H1 for ARM64-based Systems Windows 10 Version 21H2 for ARM64-based Systems Windows 10 Version 21H2 for 32-bit Systems Windows 11 version 26H1 for x64-based Systems Windows Server 2025 Windows 11 Version 24H2 for x64-based Systems Windows 11 Version 24H2 for ARM64-based Systems Windows 11 Version 23H2 for x64-based Systems Windows 11 Version 23H2 for ARM64-based Systems Windows 11 Version 25H2 for x64-based Systems Windows 11 Version 25H2 for ARM64-based Systems Windows Server 2025 (Server Core installation) Windows 10 Version 22H2 for 32-bit Systems Windows 10 Version 22H2 for ARM64-based Systems Windows 10 Version 22H2 for x64-based Systems Windows 10 Version 21H2 for x64-based Systems |
| CVE-2026-45607 | Windows Server 2019 (Server Core installation) Windows Server 2019 Windows 10 Version 1809 for x64-based Systems Windows Server 2016 (Server Core installation) Windows Server 2016 Windows 10 Version 1607 for x64-based Systems Windows 11 Version 26H1 for ARM64-based Systems Windows 11 version 26H1 for x64-based Systems Windows Server 2025 Windows 11 Version 24H2 for x64-based Systems Windows 11 Version 24H2 for ARM64-based Systems Windows 11 Version 23H2 for x64-based Systems Windows 11 Version 23H2 for ARM64-based Systems Windows 11 Version 25H2 for x64-based Systems Windows 11 Version 25H2 for ARM64-based Systems Windows Server 2025 (Server Core installation) Windows 10 Version 22H2 for x64-based Systems Windows 10 Version 21H2 for x64-based Systems Windows Server 2022 (Server Core installation) Windows Server 2022 |
| CVE-2026-45641 | Windows 11 version 26H1 for x64-based Systems Windows Server 2025 Windows 11 Version 24H2 for x64-based Systems Windows 11 Version 23H2 for x64-based Systems Windows 11 Version 25H2 for x64-based Systems Windows Server 2025 (Server Core installation) Windows 10 Version 22H2 for x64-based Systems Windows 10 Version 21H2 for x64-based Systems Windows Server 2022 (Server Core installation) Windows Server 2022 |
Mitigation
Patch update
At present, Microsoft has officially released security patches to fix the above vulnerabilities for supported product versions. It is strongly recommended that affected users install patches as soon as possible for protection. The official download link:
https://msrc.microsoft.com/update-guide/releaseNote/2026-Jun
Note: Patch updates for Windows Update may fail due to network problems, computer environment problems, etc. After installing the patch, users should check whether the patch has been successfully updated in time.
Right-click the Windows icon, select “Settings (N)”, select “Update and Security”-“Windows Update”, view the prompt information on this page, or click “View Update History” to view the historical update status.
For updates that have not been successfully installed, you can click the update name to jump to the Microsoft official download page. It is recommended that users click the link on this page and go to the “Microsoft Update Catalog” website to download the independent program package and install it.
Appendix: Vulnerability List
| Affected products | CVE No. | Vulnerability Title | Severity |
|---|---|---|---|
| Microsoft Office | CVE-2026-45472 | Microsoft Office Remote Code Execution Vulnerability | Critical |
| Microsoft Office | CVE-2026-45474 | Microsoft Office Remote Code Execution Vulnerability | Critical |
| Copilot Chat (Microsoft Edge) | CVE-2026-47644 | Copilot Chat (Microsoft Edge) information disclosure vulnerability | Critical |
| Azure | CVE-2026-47655 | Microsoft Graph information disclosure vulnerability | Critical |
| Windows | CVE-2026-33828 | Windows Device Health Attestation (DHA) Privilege Escalation Vulnerability | Critical |
| Microsoft Office | CVE-2026-45456 | Microsoft Outlook and Word remote code execution vulnerability | Critical |
| Microsoft Office | CVE-2026-45458 | Microsoft Outlook and Word remote code execution vulnerability | Critical |
| Microsoft Office | CVE-2026-45460 | Microsoft Office Information Disclosure Vulnerability | Critical |
| Microsoft Office | CVE-2026-45461 | Microsoft Office Remote Code Execution Vulnerability | Critical |
| Windows | CVE-2026-45607 | Windows Hyper-V remote code execution vulnerability | Critical |
| Windows | CVE-2026-45641 | Windows Hyper-V remote code execution vulnerability | Critical |
| Windows | CVE-2026-45648 | Windows Active Directory Domain Services Remote Code Execution Vulnerability | Critical |
| Windows | CVE-2026-45657 | Windows Kernel Remote Code Execution Vulnerability | Critical |
| Windows | CVE-2026-47288 | Windows Kerberos Key Distribution Center (KDC) Remote Code Execution | Critical |
| Windows | CVE-2026-47289 | Remote Desktop Client remote code execution vulnerability | Critical |
| Windows | CVE-2026-47291 | HTTP.sys Remote Code Execution Vulnerability | Critical |
| Azure | CVE-2026-32193 | Azure Kubernetes Service (AKS) Remote Code Execution Vulnerability | Critical |
| Microsoft Office | CVE-2026-47635 | Microsoft Outlook and Word remote code execution vulnerability | Critical |
| Windows | CVE-2026-47652 | Windows Hyper-V remote code execution vulnerability | Critical |
| Windows | CVE-2026-47654 | Remote Desktop Client remote code execution vulnerability | Critical |
| Windows | CVE-2026-48563 | Remote Desktop Client remote code execution vulnerability | Critical |
| Other | CVE-2026-26142 | Nuance PowerScribe remote code execution vulnerability | Critical |
| Microsoft Office | CVE-2026-45463 | Microsoft Office Remote Code Execution Vulnerability | Critical |
| Other | CVE-2026-45476 | Microsoft Azure Network Adapter privilege escalation vulnerability | Critical |
| Windows | CVE-2026-48574 | Windows Media Remote Code Execution Vulnerability | Critical |
| Windows | CVE-2026-44810 | Microsoft Cryptographic Services privilege escalation vulnerability | Critical |
| Windows | CVE-2026-42992 | Remote Desktop Client remote code execution vulnerability | Critical |
| Windows | CVE-2026-44799 | Remote Desktop Client remote code execution vulnerability | Critical |
| Windows | CVE-2026-44815 | DHCP Client Service Remote Code Execution Vulnerability | Critical |
| Windows | CVE-2026-44801 | Remote Desktop Client remote code execution vulnerability | Critical |
| Windows | CVE-2026-42985 | Remote Desktop Client remote code execution vulnerability | Critical |
| Windows | CVE-2026-42987 | Windows Deployment Services (WDS) Remote Code Execution | Critical |
| Microsoft Office,Apps,Windows | CVE-2026-44803 | Windows Graphics Component Remote Code Execution Vulnerability | Critical |
| Microsoft Office,Apps,Windows | CVE-2026-44812 | Windows Graphics Component Remote Code Execution Vulnerability | Critical |
| Apps | CVE-2026-45497 | Microsoft M365 Copilot Remote Code Execution Vulnerability | Critical |
| Apps | CVE-2026-42824 | M365 Copilot Information Disclosure Vulnerability | Critical |
| Azure | CVE-2026-48567 | Azure HorizonDB privilege escalation vulnerability | Critical |
| Microsoft Exchange Online | CVE-2026-48579 | Microsoft Exchange Online information disclosure vulnerability | Critical |
| Windows | CVE-2026-41108 | Windows DNS Client Privilege Escalation Vulnerability | Important |
| Microsoft Office | CVE-2026-45467 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office | CVE-2026-45468 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office | CVE-2026-45469 | Microsoft Excel Remote Code Execution Vulnerability | Important |
| Microsoft Office | CVE-2026-45475 | Microsoft Office Remote Code Execution Vulnerability | Important |
| Microsoft Office | CVE-2026-45471 | Microsoft Word remote code execution vulnerability | Important |
| Microsoft Office | CVE-2026-45479 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office | CVE-2026-45486 | Microsoft Word remote code execution vulnerability | Important |
| Microsoft Office | CVE-2026-45485 | Microsoft Office Information Disclosure Vulnerability | Important |
| Microsoft Office | CVE-2026-45483 | Microsoft Office Project Server spoofing vulnerability | Important |
| Windows | CVE-2026-40409 | Windows Universal Disk Format File System Driver (UDFS) Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-40404 | Windows Universal Disk Format File System Driver (UDFS) Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-34335 | Windows Ancillary Function Driver for WinSock Privilege Escalation Vulnerability | Important |
| Apps | CVE-2026-42902 | Microsoft PowerToys Privilege Escalation Vulnerability | Important |
| Microsoft Office | CVE-2026-44817 | Microsoft Excel Remote Code Execution Vulnerability | Important |
| Microsoft Office | CVE-2026-44818 | Microsoft Excel Remote Code Execution Vulnerability | Important |
| Microsoft Office | CVE-2026-44819 | Microsoft Office Remote Code Execution Vulnerability | Important |
| Microsoft Office | CVE-2026-44820 | Microsoft Excel Remote Code Execution Vulnerability | Important |
| Microsoft Office | CVE-2026-44821 | Microsoft Office Information Disclosure Vulnerability | Important |
| Microsoft Office | CVE-2026-44823 | Microsoft Excel Remote Code Execution Vulnerability | Important |
| Microsoft Office | CVE-2026-44824 | Microsoft Office Remote Code Execution Vulnerability | Important |
| Microsoft Office | CVE-2026-45453 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office | CVE-2026-45466 | Microsoft Word Information Disclosure Vulnerability | Important |
| Windows | CVE-2026-45487 | Windows Program Compatibility Assistant Service privilege escalation vulnerability | Important |
| .NET 10.0 installed on Windows, .NET 9.0 installed on Windows, .NET 8.0 installed on Windows | CVE-2026-45490 | .NET SDK Privilege Escalation Vulnerability | Important |
| .NET,.NET 10.0 installed on Linux, .NET 9.0 installed on Linux, .NET 8.0 installed on Mac OS, .NET 8.0 installed on Linux, .NET 10.0 installed on Windows, .NET 9.0 installed on Mac OS, .NET 8.0 installed on Windows, .NET 10.0 installed on Mac OS, .NET 9.0 installed on Windows | CVE-2026-45491 | .NET Tampering Vulnerability | Important |
| Windows | CVE-2026-45605 | Windows Bluetooth Service Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-45639 | Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability | Important |
| Windows | CVE-2026-45640 | Windows Bluetooth Port Driver privilege escalation vulnerability | Important |
| Windows | CVE-2026-45606 | Microsoft UxTheme Library (uxtheme.dll) Denial of Service Vulnerability | Important |
| Windows | CVE-2026-45634 | Windows DHCP Client Information Disclosure Vulnerability | Important |
| Windows | CVE-2026-45642 | Microsoft Azure Attestation service and Device Health Attestation Service spoofing vulnerability | Important |
| Microsoft Office | CVE-2026-45643 | Microsoft Word remote code execution vulnerability | Important |
| Microsoft Office | CVE-2026-45645 | Microsoft Office Remote Code Execution Vulnerability | Important |
| Apps,Microsoft Office | CVE-2026-45649 | Office for Android spoofing vulnerability | Important |
| Apps | CVE-2026-45650 | Microsoft Bing Search Spoofing Vulnerability | Important |
| Windows | CVE-2026-45655 | Windows BitLocker security feature bypass vulnerability | Important |
| Windows | CVE-2026-45656 | UEFI Secure Boot security feature bypass vulnerability | Important |
| Visual Studio Code | CVE-2026-47287 | Visual Studio Code Tampering Vulnerability | Important |
| Visual Studio Code – MSSQL Extension | CVE-2026-47292 | Visual Studio Code MSSQL Extension Remote Code Execution Vulnerability | Important |
| Windows | CVE-2026-41092 | Microsoft Kinect privilege escalation vulnerability | Important |
| Microsoft Office | CVE-2026-47298 | Microsoft SharePoint Server Remote Code Execution Vulnerability | Important |
| Azure | CVE-2026-41098 | Azure Stack Edge Spoofing Vulnerability | Important |
| Microsoft Office | CVE-2026-47636 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office | CVE-2026-47637 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office | CVE-2026-47638 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office | CVE-2026-47639 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office | CVE-2026-47641 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Windows | CVE-2026-45588 | Secure Boot security feature bypass vulnerability | Important |
| Windows | CVE-2026-47648 | Windows Storage Permission Escalation Vulnerability | Important |
| Windows | CVE-2026-47653 | Remote Desktop Client remote code execution vulnerability | Important |
| Windows | CVE-2026-48566 | Windows DWM Core Library Information Disclosure Vulnerability | Important |
| Windows | CVE-2026-48568 | Secure Boot security feature bypass vulnerability | Important |
| Windows | CVE-2026-48570 | Secure Boot security feature bypass vulnerability | Important |
| Windows | CVE-2026-48573 | Secure Boot security feature bypass vulnerability | Important |
| Windows | CVE-2026-48575 | Secure Boot security feature bypass vulnerability | Important |
| Windows | CVE-2026-48576 | Secure Boot security feature bypass vulnerability | Important |
| Windows | CVE-2026-48578 | Secure Boot security feature bypass vulnerability | Important |
| Windows | CVE-2026-48583 | Windows Kernel privilege escalation vulnerability | Important |
| Apps | CVE-2026-49161 | Microsoft PC Manager security feature bypass vulnerability | Important |
| Windows | CVE-2026-50508 | Windows NTLM spoofing vulnerability | Important |
| Microsoft Office | CVE-2026-33113 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Dynamics | CVE-2026-40371 | Microsoft Dynamics 365 (on-premises) Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-42828 | Windows Projected File System Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-42829 | Windows Administrator Protection Secure feature bypass vulnerability | Important |
| Microsoft Office | CVE-2026-42835 | Microsoft Teams for Android Information Disclosure Vulnerability | Important |
| Visual Studio Code | CVE-2026-40376 | Visual Studio Code privilege escalation vulnerability | Important |
| Microsoft Office | CVE-2026-44822 | Microsoft Excel Information Disclosure Vulnerability | Important |
| Microsoft Office | CVE-2026-45454 | Microsoft SharePoint Remote Code Execution Vulnerability | Important |
| Microsoft Office | CVE-2026-45455 | Microsoft Excel Information Disclosure Vulnerability | Important |
| Microsoft Office | CVE-2026-45457 | Microsoft Word remote code execution vulnerability | Important |
| Microsoft Office | CVE-2026-45459 | Microsoft Excel security feature bypass vulnerability | Important |
| Microsoft Office | CVE-2026-45462 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office | CVE-2026-45464 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office | CVE-2026-45465 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Visual Studio Code CoPilot Chat Extension | CVE-2026-45482 | Microsoft Visual Studio Code CoPilot Chat Extension security feature bypass vulnerability | Important |
| Windows | CVE-2026-45586 | Windows Collaborative Translation Framework (CTFMON) Privilege Escalation Vulnerability | Important |
| .NET 10.0 installed on Linux, .NET 9.0 installed on Linux, .NET 8.0 installed on Mac OS, .NET 8.0 installed on Linux, .NET 10.0 installed on Windows, .NET 9.0 installed on Mac OS,Microsoft Visual Studio, .NET 8.0 installed on Windows, .NET 10.0 installed on Mac OS, .NET 9.0 installed on Windows,ASP.NET Core | CVE-2026-45591 | ASP.NET Core denial of service vulnerability | Important |
| Windows | CVE-2026-45592 | Windows Internet (wininet.dll) Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-45593 | Windows SDK Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-45594 | Windows Application Identity (AppID) Information Disclosure Vulnerability | Important |
| Windows | CVE-2026-45604 | Windows Managed Installer Information Disclosure Vulnerability | Important |
| Windows | CVE-2026-45595 | Windows Mark of the Web security feature bypass vulnerability | Important |
| Windows | CVE-2026-45597 | Windows UI Automation Manager (uiamanager.dll) Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-45599 | Windows UPnP Device Host Remote Code Execution Vulnerability | Important |
| Windows | CVE-2026-45601 | Windows Ancillary Function Driver for WinSock Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-45598 | Windows Ancillary Function Driver for WinSock Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-45636 | Windows NTFS Remote Code Execution Vulnerability | Important |
| Windows | CVE-2026-45596 | Windows Ancillary Function Driver for WinSock Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-45600 | Windows Kernel-Mode Driver privilege escalation vulnerability | Important |
| Windows | CVE-2026-45602 | Windows Dynamic Host Configuration Protocol (DHCP) Tampering Vulnerability | Important |
| Windows | CVE-2026-45635 | Windows UPnP Device Host Remote Code Execution Vulnerability | Important |
| Windows | CVE-2026-45638 | Windows Ancillary Function Driver for WinSock Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-45603 | Windows Ancillary Function Driver for WinSock Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-45637 | Microsoft DWM Core Library Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-45608 | Windows DHCP Client Information Disclosure Vulnerability | Important |
| Microsoft Live Share Canvas SDK | CVE-2026-45644 | Microsoft Live Share Canvas SDK Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-45653 | Windows Kernel privilege escalation vulnerability | Important |
| Windows | CVE-2026-45654 | Secure Boot security feature bypass vulnerability | Important |
| System Center | CVE-2026-45647 | Microsoft Defender for Endpoint for Mac Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-45658 | Windows BitLocker security feature bypass vulnerability | Important |
| Visual Studio Code | CVE-2026-47281 | Visual Studio Code privilege escalation vulnerability | Important |
| Visual Studio Code | CVE-2026-47284 | Visual Studio Code Information Disclosure Vulnerability | Important |
| Microsoft Office | CVE-2026-47293 | Microsoft Office Click-To-Run privilege escalation vulnerability | Important |
| Windows | CVE-2026-42910 | Windows Hotpatch Monitoring Service privilege escalation vulnerability | Important |
| Microsoft Office | CVE-2026-47634 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office | CVE-2026-47640 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Azure | CVE-2026-47643 | Azure Stack Edge Remote Code Execution Vulnerability | Important |
| Microsoft Office | CVE-2026-45481 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office | CVE-2026-45484 | Microsoft SharePoint privilege escalation vulnerability | Important |
| Windows | CVE-2026-47656 | Windows Boot Manager security feature bypass vulnerability | Important |
| Microsoft Office | CVE-2026-48560 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office | CVE-2026-48562 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Windows | CVE-2026-48565 | Windows Narrator Braille privilege escalation vulnerability | Important |
| Visual Studio Code | CVE-2026-48569 | Visual Studio Code security feature bypass vulnerability | Important |
| Windows | CVE-2026-49160 | HTTP.sys denial of service vulnerability | Important |
| Windows | CVE-2026-50507 | Windows BitLocker security feature bypass vulnerability | Important |
| Windows | CVE-2026-42836 | Windows Function Discovery Service (fdwsd.dll) Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-42837 | Windows Projected File System Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-42903 | Windows Kerberos denial of service vulnerability | Important |
| Windows | CVE-2026-42904 | Windows TCP/IP privilege escalation vulnerability | Important |
| Windows | CVE-2026-42905 | Windows DWM Core Library privilege escalation vulnerability | Important |
| Windows | CVE-2026-42906 | Windows Shell Information Disclosure Vulnerability | Important |
| Windows | CVE-2026-42907 | Windows Shell Information Disclosure Vulnerability | Important |
| Windows | CVE-2026-42908 | Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability | Important |
| Windows | CVE-2026-42980 | NT OS Kernel Permission Escalation Vulnerability | Important |
| Windows | CVE-2026-42909 | Remote Desktop Client remote code execution vulnerability | Important |
| Windows | CVE-2026-42916 | NT OS Kernel Permission Escalation Vulnerability | Important |
| Windows | CVE-2026-42911 | Windows Ancillary Function Driver for WinSock Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-42913 | Remote Desktop Client remote code execution vulnerability | Important |
| Windows | CVE-2026-42912 | Windows Telephony Service privilege escalation vulnerability | Important |
| Windows | CVE-2026-42914 | Windows Kerberos denial of service vulnerability | Important |
| Windows | CVE-2026-42915 | Windows TCP/IP denial of service vulnerability | Important |
| Windows | CVE-2026-42968 | Windows Telephony Server Information Disclosure Vulnerability | Important |
| Windows | CVE-2026-42972 | Windows Hyper-V Information Disclosure Vulnerability | Important |
| Windows | CVE-2026-42969 | Windows Push Notification Information Disclosure Vulnerability | Important |
| Windows | CVE-2026-42971 | Windows Push Notification Information Disclosure Vulnerability | Important |
| Windows | CVE-2026-42970 | Windows Push Notification Information Disclosure Vulnerability | Important |
| Windows | CVE-2026-42973 | Windows Push Notification Information Disclosure Vulnerability | Important |
| Windows | CVE-2026-42984 | Windows Kernel privilege escalation vulnerability | Important |
| Windows | CVE-2026-42981 | Windows Performance Monitor Remote Code Execution Vulnerability | Important |
| Windows | CVE-2026-42974 | Windows Performance Monitor Remote Code Execution Vulnerability | Important |
| Windows | CVE-2026-42986 | Microsoft Graphics Component privilege escalation vulnerability | Important |
| Windows | CVE-2026-42978 | Windows Push Notifications privilege escalation vulnerability | Important |
| Windows | CVE-2026-42977 | Windows Push Notifications privilege escalation vulnerability | Important |
| Windows | CVE-2026-42979 | Windows Push Notifications privilege escalation vulnerability | Important |
| Windows | CVE-2026-42991 | Windows Push Notifications privilege escalation vulnerability | Important |
| Windows | CVE-2026-42989 | Winlogon Privilege Escalation Vulnerability | Important |
| Windows | CVE-2026-44809 | Windows Common Log File System Driver Escalation Vulnerability | Important |
| Windows | CVE-2026-44805 | Windows Network Controller (NC) Host Agent Denial of Service | Important |
| Windows | CVE-2026-44811 | Windows DWM Core Library privilege escalation vulnerability | Important |
| Windows | CVE-2026-44808 | Windows DWM Core Library privilege escalation vulnerability | Important |
| Windows | CVE-2026-44807 | Windows DWM Core Library privilege escalation vulnerability | Important |
| Windows | CVE-2026-42983 | Windows DWM Core Library privilege escalation vulnerability | Important |
| Windows | CVE-2026-44802 | Windows DWM Core Library privilege escalation vulnerability | Important |
| Windows | CVE-2026-44814 | Windows DWM Core Library Information Disclosure Vulnerability | Important |
| Windows | CVE-2026-42993 | Remote Desktop Client remote code execution vulnerability | Important |
| Windows | CVE-2026-44813 | Windows DWM Core Library privilege escalation vulnerability | Important |
| Windows | CVE-2026-44804 | Windows DWM Core Library privilege escalation vulnerability | Important |
| Apps | CVE-2026-50512 | Microsoft PC Manager privilege escalation vulnerability | Important |
| Apps | CVE-2026-50511 | Microsoft PC Manager privilege escalation vulnerability | Important |
| Microsoft Exchange Server, Microsoft Exchange Server Subscription Edition RTM | CVE-2026-47631 | Microsoft Exchange Server spoofing vulnerability | Important |
| Microsoft Exchange Server, Microsoft Exchange Server Subscription Edition RTM | CVE-2026-45500 | Microsoft Exchange Server spoofing vulnerability | Important |
| Microsoft Exchange Server, Microsoft Exchange Server Subscription Edition RTM | CVE-2026-45501 | Microsoft Exchange Server spoofing vulnerability | Important |
| Microsoft Exchange Server, Microsoft Exchange Server Subscription Edition RTM | CVE-2026-45502 | Microsoft Exchange Server Information Disclosure Vulnerability | Important |
| Microsoft Exchange Server, Microsoft Exchange Server Subscription Edition RTM | CVE-2026-45503 | Microsoft Exchange Server Information Disclosure Vulnerability | Important |
| Microsoft Exchange Server, Microsoft Exchange Server Subscription Edition RTM | CVE-2026-45504 | Microsoft Exchange Server privilege escalation vulnerability | Important |
| Microsoft Exchange Server, Microsoft Exchange Server Subscription Edition RTM | CVE-2026-45583 | Microsoft Exchange Server Remote Code Execution Vulnerability | Important |
About NSFOCUS
NSFOCUS, a pioneering leader in cybersecurity, is dedicated to safeguarding telecommunications, Internet service providers, hosting providers, and enterprises from sophisticated cyberattacks.
Founded in 2000, NSFOCUS operates globally with over 3000 employees at two headquarters in Beijing, China, and Santa Clara, CA, USA, and over 50 offices worldwide. It has a proven track record of protecting over 25% of the Fortune Global 500 companies, including four of the five largest banks and six of the world’s top ten telecommunications companies.
Leveraging technical prowess and innovation, NSFOCUS delivers a comprehensive suite of security solutions, including the Intelligent Security Operations Platform (ISOP) for modern SOC, DDoS Protection, Continuous Threat Exposure Management (CTEM) Service and Web Application and API Protection (WAAP). All the solutions and services are augmented by the Security Large Language Model (SecLLM), ML, patented algorithms and other cutting-edge research achievements developed by NSFOCUS.
