Microsoft: >> Windows 10 20h2 Security Vulnerabilities
CVE-2022-21971
Windows Runtime Remote Code Execution Vulnerability
Known exploited
CVSS Score
7.8
EPSS Score
0.839
Published
2022-02-09
CVE-2022-21919
Windows User Profile Service Elevation of Privilege Vulnerability
Known exploited
CVSS Score
7.0
EPSS Score
0.007
Published
2022-01-11
CVE-2022-21882
Win32k Elevation of Privilege Vulnerability
Known exploited
CVSS Score
7.0
EPSS Score
0.872
Published
2022-01-11
Microsoft Diagnostics Hub Standard Collector Runtime Elevation of Privilege Vulnerability
CVSS Score
7.0
EPSS Score
0.004
Published
2022-01-11
CVE-2021-43890
We have investigated reports of a spoofing vulnerability in AppX installer that affects Microsoft Windows. Microsoft is aware of attacks that attempt to exploit this vulnerability by using specially crafted packages that include the malware family known as Emotet/Trickbot/Bazaloader.
An attacker could craft a malicious attachment to be used in phishing campaigns. The attacker would then have to convince the user to open the specially crafted attachment. 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.
Please see the Security Updates table for the link to the updated app. Alternatively you can download and install the Installer using the links provided in the FAQ section.
Please see the Mitigations and Workaround sections for important information about steps you can take to protect your system from this vulnerability.
December 27 2023 Update:
In recent months, Microsoft Threat Intelligence has seen an increase in activity from threat actors leveraging social engineering and phishing techniques to target Windows OS users and utilizing the ms-appinstaller URI scheme.
To address this increase in activity, we have updated the App Installer to disable the ms-appinstaller protocol by default and recommend other potential mitigations.
Known exploited
CVSS Score
7.1
EPSS Score
0.149
Published
2021-12-15
CVE-2021-41379
Windows Installer Elevation of Privilege Vulnerability
Known exploited
CVSS Score
5.5
EPSS Score
0.041
Published
2021-11-10
CVE-2021-41357
Win32k Elevation of Privilege Vulnerability
Known exploited
CVSS Score
7.8
EPSS Score
0.146
Published
2021-10-13
CVE-2021-40449
Win32k Elevation of Privilege Vulnerability
Known exploited
CVSS Score
7.8
EPSS Score
0.838
Published
2021-10-13
CVE-2021-40450
Win32k Elevation of Privilege Vulnerability
Known exploited
CVSS Score
7.8
EPSS Score
0.151
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