Microsoft Windows Common Log File System Driver contains a privilege escalation vulnerability that could allow a local, privileged attacker to bypass certain security mechanisms.

Microsoft Windows Installer contains an unspecified vulnerability that allows for privilege escalation.

Windows Kernel Elevation of Privilege Vulnerability

Windows Hello Security Feature Bypass Vulnerability

Windows Core Shell SI Host Extension Framework for Composable Shell Elevation of Privilege Vulnerability

Windows Feedback Hub Elevation of Privilege Vulnerability

Windows Hyper-V Denial of Service Vulnerability

Chakra Scripting Engine Memory Corruption Vulnerability

NTFS Elevation of Privilege Vulnerability

Diagnostics Hub Standard Collector Elevation of Privilege Vulnerability

Microsoft Windows Media Foundation Remote Code Execution Vulnerability

Microsoft COM for Windows Remote Code Execution Vulnerability

Windows NTFS Remote Code Execution Vulnerability

Windows Hyper-V Discrete Device Assignment (DDA) Denial of Service Vulnerability

Windows Fast FAT File System Driver Elevation of Privilege Vulnerability

NTFS Elevation of Privilege Vulnerability

NTFS Elevation of Privilege Vulnerability

Credential Security Support Provider Protocol (CredSSP) Elevation of Privilege Vulnerability

Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability

Remote Desktop Client Remote Code Execution Vulnerability

Windows Denial of Service Vulnerability

Remote Desktop Protocol Client Information Disclosure Vulnerability

Microsoft Edge (Chrome based) Spoofing on IE Mode

Windows Desktop Bridge Elevation of Privilege Vulnerability

Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability

Microsoft Virtual Machine Bus (VMBus) Remote Code Execution Vulnerability

Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation.

Microsoft Windows Print Spooler contains an unspecified vulnerability that allows for remote code execution.

Microsoft is investigating reports of a remote code execution vulnerability in MSHTML that affects Microsoft Windows. Microsoft is aware of targeted attacks that attempt to exploit this vulnerability by using specially-crafted Microsoft Office documents. An attacker could craft a malicious ActiveX control to be used by a Microsoft Office document that hosts the browser rendering engine. The attacker would then have to convince the user to open the malicious document. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. Microsoft Defender Antivirus and Microsoft Defender for Endpoint both provide detection and protections for the known vulnerability. Customers should keep antimalware products up to date. Customers who utilize automatic updates do not need to take additional action. Enterprise customers who manage updates should select the detection build 1.349.22.0 or newer and deploy it across their environments. Microsoft Defender for Endpoint alerts will be displayed as: “Suspicious Cpl File Execution”. Upon completion of this investigation, Microsoft will take the appropriate action to help protect our customers. This may include providing a security update through our monthly release process or providing an out-of-cycle security update, depending on customer needs. Please see the Mitigations and Workaround sections for important information about steps you can take to protect your system from this vulnerability. UPDATE September 14, 2021: Microsoft has released security updates to address this vulnerability. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. Please see the FAQ for important information about which updates are applicable to your system.

Microsoft Windows Common Log File System (CLFS) driver contains an unspecified vulnerability that allows for privilege escalation.