Microsoft: >> Windows 10 2004 Security Vulnerabilities
CVE-2021-40450
Win32k Elevation of Privilege Vulnerability
Known exploited
CVSS Score
7.8
EPSS Score
0.138
Published
2021-10-13
CVE-2021-40444
<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>
Known exploited
CVSS Score
8.8
EPSS Score
0.943
Published
2021-09-15
CVE-2021-36955
Windows Common Log File System Driver Elevation of Privilege Vulnerability
Known exploited
CVSS Score
7.8
EPSS Score
0.19
Published
2021-09-15
CVE-2021-36948
Windows Update Medic Service Elevation of Privilege Vulnerability
Known exploited
CVSS Score
7.8
EPSS Score
0.001
Published
2021-08-12
CVE-2021-34484
Windows User Profile Service Elevation of Privilege Vulnerability
Known exploited
CVSS Score
7.8
EPSS Score
0.059
Published
2021-08-12
CVE-2021-34486
Windows Event Tracing Elevation of Privilege Vulnerability
Known exploited
CVSS Score
7.8
EPSS Score
0.277
Published
2021-08-12
CVE-2021-36934
<p>An elevation of privilege vulnerability exists because of overly permissive Access Control Lists (ACLs) on multiple system files, including the Security Accounts Manager (SAM) database. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p>
<p>An attacker must have the ability to execute code on a victim system to exploit this vulnerability.</p>
<p>After installing this security update, you <em>must</em> manually delete all shadow copies of system files, including the SAM database, to fully mitigate this vulnerabilty. <strong>Simply installing this security update will not fully mitigate this vulnerability.</strong> See <a href="https://support.microsoft.com/topic/1ceaa637-aaa3-4b58-a48b-baf72a2fa9e7">KB5005357- Delete Volume Shadow Copies</a>.</p>
Known exploited
CVSS Score
7.8
EPSS Score
0.904
Published
2021-07-22
CVE-2021-34448
Scripting Engine Memory Corruption Vulnerability
Known exploited
CVSS Score
6.8
EPSS Score
0.029
Published
2021-07-16
CVE-2021-33771
Windows Kernel Elevation of Privilege Vulnerability
Known exploited
CVSS Score
7.8
EPSS Score
0.016
Published
2021-07-14
CVE-2021-31979
Windows Kernel Elevation of Privilege Vulnerability
Known exploited
CVSS Score
7.8
EPSS Score
0.01
Published
2021-07-14