| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| Windows Work Folder Service Elevation of Privilege Vulnerability |
| Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability |
| Storage Spaces Controller Elevation of Privilege Vulnerability |
| Windows Event Tracing Elevation of Privilege Vulnerability |
| <p>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.</p>
<p>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.</p>
<p>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”.</p>
<p>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.</p>
<p>Please see the <strong>Mitigations</strong> and <strong>Workaround</strong> sections for important information about steps you can take to protect your system from this vulnerability.</p>
<p><strong>UPDATE</strong> 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.</p>
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| Tablet Windows User Interface Application Core Elevation of Privilege Vulnerability |
| Windows Hyper-V Shared Virtual Disk Elevation of Privilege Vulnerability |
| Windows Fax Compose Form Remote Code Execution Vulnerability |
| Windows Fax Compose Form Remote Code Execution Vulnerability |
| Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability |
| Cluster Client Failover (CCF) Elevation of Privilege Vulnerability |
| Windows Kerberos Elevation of Privilege Vulnerability |
| Windows AppX Package Manager Elevation of Privilege Vulnerability |
| .NET, .NET Framework, and Visual Studio Elevation of Privilege Vulnerability |
| Windows iSCSI Target Service Information Disclosure Vulnerability |
| Windows Hyper-V Shared Virtual Hard Disks Information Disclosure Vulnerability |
| Windows Cluster Shared Volume (CSV) Denial of Service Vulnerability |
| When curl retrieves an HTTP response, it stores the incoming headers so that
they can be accessed later via the libcurl headers API.
However, curl did not have a limit in how many or how large headers it would
accept in a response, allowing a malicious server to stream an endless series
of headers and eventually cause curl to run out of heap memory. |
| The Microsoft vulnerable driver block list is implemented as Windows Defender Application Control (WDAC) policy. Entries that specify only the to-be-signed (TBS) part of the code signer certificate are properly blocked, but entries that specify the signing certificate's TBS hash along with a 'FileAttribRef' qualifier (such as file name or version) may not be blocked, whether hypervisor-protected code integrity (HVCI) is enabled or not. NOTE: The vendor disputes this CVE ID assignment and states that the driver blocklist is intended for use with HVCI. |
| The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023. |
