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Patch Tuesday January 2026

CVE-2026-0386 — Windows Deployment Services Remote Code Execution Vulnerability
CVE-2026-20803 — Microsoft SQL Server Elevation of Privilege Vulnerability
CVE-2026-20804 — Windows Hello Tampering Vulnerability
CVE-2026-20805 — Desktop Window Manager Information Disclosure Vulnerability
CVE-2026-20808 — Windows File Explorer Elevation of Privilege Vulnerability
CVE-2026-20809 — Windows Kernel Memory Elevation of Privilege Vulnerability
CVE-2026-20810 — Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
CVE-2026-20811 — Win32k Elevation of Privilege Vulnerability
CVE-2026-20812 — LDAP Tampering Vulnerability
CVE-2026-20814 — DirectX Graphics Kernel Elevation of Privilege Vulnerability
CVE-2026-20815 — Capability Access Management Service (camsvc) Elevation of Privilege Vulnerability
CVE-2026-20816 — Windows Installer Elevation of Privilege Vulnerability
CVE-2026-20817 — Windows Error Reporting Service Elevation of Privilege Vulnerability
CVE-2026-20818 — Windows Kernel Information Disclosure Vulnerability
CVE-2026-20819 — Windows Virtualization-Based Security (VBS) Information Disclosure Vulnerability
CVE-2026-20820 — Windows Common Log File System Driver Elevation of Privilege Vulnerability
CVE-2026-20821 — Remote Procedure Call Information Disclosure Vulnerability
CVE-2026-20822 — Windows Graphics Component Elevation of Privilege Vulnerability
CVE-2026-20823 — Windows File Explorer Information Disclosure Vulnerability
CVE-2026-20824 — Windows Remote Assistance Security Feature Bypass Vulnerability
CVE-2026-20825 — Windows Hyper-V Information Disclosure Vulnerability
CVE-2026-20826 — Tablet Windows User Interface (TWINUI) Subsystem Information Disclosure Vulnerability
CVE-2026-20827 — Tablet Windows User Interface (TWINUI) Subsystem Information Disclosure Vulnerability
CVE-2026-20828 — Windows rndismp6.sys Information Disclosure Vulnerability
CVE-2026-20829 — TPM Trustlet Information Disclosure Vulnerability
CVE-2026-20830 — Capability Access Management Service (camsvc) Elevation of Privilege Vulnerability
CVE-2026-20831 — Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
CVE-2026-20832 — Windows Remote Procedure Call Interface Definition Language (IDL) Elevation of Privilege Vulnerability
CVE-2026-20833 — Windows Kerberos Information Disclosure Vulnerability
CVE-2026-20834 — Windows Spoofing Vulnerability
CVE-2026-20835 — Capability Access Management Service (camsvc) Information Disclosure Vulnerability
CVE-2026-20836 — DirectX Graphics Kernel Elevation of Privilege Vulnerability
CVE-2026-20837 — Windows Media Remote Code Execution Vulnerability
CVE-2026-20838 — Windows Kernel Information Disclosure Vulnerability
CVE-2026-20839 — Windows Client-Side Caching (CSC) Service Information Disclosure Vulnerability
CVE-2026-20840 — Windows NTFS Remote Code Execution Vulnerability
CVE-2026-20842 — Microsoft DWM Core Library Elevation of Privilege Vulnerability
CVE-2026-20843 — Windows Routing and Remote Access Service (RRAS) Elevation of Privilege Vulnerability
CVE-2026-20844 — Windows Clipboard Server Elevation of Privilege Vulnerability
CVE-2026-20847 — Microsoft Windows File Explorer Spoofing Vulnerability
CVE-2026-20848 — Windows SMB Server Elevation of Privilege Vulnerability
CVE-2026-20849 — Windows Kerberos Elevation of Privilege Vulnerability
CVE-2026-20851 — Capability Access Management Service (camsvc) Information Disclosure Vulnerability
CVE-2026-20852 — Windows Hello Tampering Vulnerability
CVE-2026-20853 — Windows WalletService Elevation of Privilege Vulnerability
CVE-2026-20854 — Windows Local Security Authority Subsystem Service (LSASS) Remote Code Execution Vulnerability
CVE-2026-20856 — Windows Server Update Service (WSUS) Remote Code Execution Vulnerability
CVE-2026-20857 — Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
CVE-2026-20858 — Windows Management Services Elevation of Privilege Vulnerability
CVE-2026-20859 — Windows Kernel-Mode Driver Elevation of Privilege Vulnerability
CVE-2026-20860 — Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
CVE-2026-20861 — Windows Management Services Elevation of Privilege Vulnerability
CVE-2026-20862 — Windows Management Services Information Disclosure Vulnerability
CVE-2026-20863 — Win32k Elevation of Privilege Vulnerability
CVE-2026-20864 — Windows Connected Devices Platform Service Elevation of Privilege Vulnerability
CVE-2026-20865 — Windows Management Services Elevation of Privilege Vulnerability
CVE-2026-20866 — Windows Management Services Elevation of Privilege Vulnerability
CVE-2026-20867 — Windows Management Services Elevation of Privilege Vulnerability
CVE-2026-20868 — Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2026-20869 — Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability
CVE-2026-20870 — Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability
CVE-2026-20871 — Desktop Windows Manager Elevation of Privilege Vulnerability
CVE-2026-20872 — NTLM Hash Disclosure Spoofing Vulnerability
CVE-2026-20873 — Windows Management Services Elevation of Privilege Vulnerability
CVE-2026-20874 — Windows Management Services Elevation of Privilege Vulnerability
CVE-2026-20875 — Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability
CVE-2026-20876 — Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability
CVE-2026-20877 — Windows Management Services Elevation of Privilege Vulnerability
CVE-2026-20918 — Windows Management Services Elevation of Privilege Vulnerability
CVE-2026-20919 — Windows SMB Server Elevation of Privilege Vulnerability
CVE-2026-20920 — Win32k Elevation of Privilege Vulnerability
CVE-2026-20921 — Windows SMB Server Elevation of Privilege Vulnerability
CVE-2026-20922 — Windows NTFS Remote Code Execution Vulnerability
CVE-2026-20923 — Windows Management Services Elevation of Privilege Vulnerability
CVE-2026-20924 — Windows Management Services Elevation of Privilege Vulnerability
CVE-2026-20925 — NTLM Hash Disclosure Spoofing Vulnerability
CVE-2026-20926 — Windows SMB Server Elevation of Privilege Vulnerability
CVE-2026-20927 — Windows SMB Server Denial of Service Vulnerability
CVE-2026-20929 — Windows HTTP.sys Elevation of Privilege Vulnerability
CVE-2026-20931 — Windows Telephony Service Elevation of Privilege Vulnerability
CVE-2026-20932 — Windows File Explorer Information Disclosure Vulnerability
CVE-2026-20934 — Windows SMB Server Elevation of Privilege Vulnerability
CVE-2026-20935 — Windows Virtualization-Based Security (VBS) Information Disclosure Vulnerability
CVE-2026-20936 — Windows NDIS Information Disclosure Vulnerability
CVE-2026-20937 — Windows File Explorer Information Disclosure Vulnerability
CVE-2026-20938 — Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability
CVE-2026-20939 — Windows File Explorer Information Disclosure Vulnerability
CVE-2026-20940 — Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
CVE-2026-20941 — Host Process for Windows Tasks Elevation of Privilege Vulnerability
CVE-2026-20943 — Microsoft Office Click-To-Run Remote Code Execution Vulnerability
CVE-2026-20944 — Microsoft Word Remote Code Execution Vulnerability
CVE-2026-20946 — Microsoft Excel Remote Code Execution Vulnerability
CVE-2026-20947 — Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2026-20948 — Microsoft Word Remote Code Execution Vulnerability
CVE-2026-20949 — Microsoft Excel Security Feature Bypass Vulnerability
CVE-2026-20950 — Microsoft Excel Remote Code Execution Vulnerability
CVE-2026-20951 — Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2026-20952 — Microsoft Office Remote Code Execution Vulnerability
CVE-2026-20953 — Microsoft Office Remote Code Execution Vulnerability
CVE-2026-20955 — Microsoft Excel Remote Code Execution Vulnerability
CVE-2026-20956 — Microsoft Excel Remote Code Execution Vulnerability
CVE-2026-20957 — Microsoft Excel Remote Code Execution Vulnerability
CVE-2026-20958 — Microsoft SharePoint Information Disclosure Vulnerability
CVE-2026-20959 — Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-20960 — PowerApps Desktop Client Remote Code Execution Vulnerability
CVE-2026-20962 — Dynamic Root of Trust for Measurement (DRTM) Information Disclosure Vulnerability
CVE-2026-20963 — Microsoft SharePoint Remote Code Execution Vulnerability
CVE-2026-20965 — Windows Admin Center Elevation of Privilege Vulnerability
CVE-2026-21219 — Inbox COM Objects (Global Memory) Remote Code Execution Vulnerability
CVE-2026-21221 — Capability Access Management Service (camsvc) Elevation of Privilege Vulnerability
CVE-2026-21223 — Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability
CVE-2026-21224 — Azure Connected Machine Agent Elevation of Privilege Vulnerability
CVE-2026-21226 — Azure Core shared client library for Python Remote Code Execution Vulnerability
CVE-2026-21227 — Azure Logic Apps Elevation of Privilege Vulnerability
CVE-2026-21264 — Microsoft Account Spoofing Vulnerability
CVE-2026-21265 — Secure Boot Certificate Expiration Security Feature Bypass Vulnerability
CVE-2026-21509 — Microsoft Office Security Feature Bypass Vulnerability
CVE-2026-21520 — Copilot Studio Information Disclosure Vulnerability
CVE-2026-21521 — Word Copilot Information Disclosure Vulnerability
CVE-2026-21524 — Azure Data Explorer Information Disclosure Vulnerability
CVE-2026-24304 — Azure Resource Manager Elevation of Privilege Vulnerability
CVE-2026-24305 — Azure Entra ID Elevation of Privilege Vulnerability
CVE-2026-24306 — Azure Front Door Elevation of Privilege Vulnerability
CVE-2026-24307 — M365 Copilot Information Disclosure Vulnerability
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