Microsoft Server Windows Server Vulnerabilities & Security Advisories
1523 advisories tracked · Microsoft Security Update Guide (MSRC) · 61 listed in the CISA Known Exploited Vulnerabilities catalog
Every row below is a published Microsoft Server advisory that VulniPulse classified as Windows Server, with the CVEs, affected and fixed releases and exploitation status the vendor stated. Severity mix: 65 critical, 1088 high, 416 medium, 4 low.
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Source
Microsoft Security Update Guide (MSRC)
Polled via the official MSRC Security Update Guide RSS feed (api.msrc.microsoft.com, no credentials required), scoped to SERVER products only — Windows Server, Exchange, SQL Server, SharePoint, Hyper-V and companion server roles. Client-only CVEs (Edge, Office apps, consumer Windows) are filtered out via the monthly CVRF document's affected-product list.
Latest MS Server Windows Server advisories
High [CVE-2022-30190] Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Vulnerability
A remote code execution vulnerability exists when MSDT is called using the URL protocol from a calling application such as Word. An attacker who successfully exploits this vulnerability can run arbitrary code with the privileges of the calling application. The attacker can then install programs, view, change, or delete data, or create new accounts in the context allowed by the user’s rights. Please see the MSRC Blog Entry for important information about steps you can take to protect your system from this vulnerability. Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server 2022; Windows Server version 20H2; and 8 more. Affected products named by the advisory: Windows Server 2016 (Server Core installation); Windows Server 2008 R2 Service Pack 1 (Server Core installation); Windows Server 2012 (Server Core installation); Windows Server 2012 R2 (Server Core installation).
High [CVE-2022-21882] Win32k Elevation of Privilege Vulnerability
Win32k Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server 2022; Windows Server version 20H2.
High [CVE-2021-43226] Windows Common Log File System Driver Elevation of Privilege Vulnerability
Windows Common Log File System Driver Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server 2022; Windows Server version 2004; and 11 more. Affected products named by the advisory: Windows Server version 20H2; Windows Server 2016 (Server Core installation); Windows Server 2008 Service Pack 2 (Server Core installation); Windows Server 2008 Service Pack 2; and 3 more.
High [CVE-2021-42306] Azure Active Directory Information Disclosure Vulnerability
An information disclosure vulnerability manifests when a user or an application uploads unprotected private key data as part of an authentication certificate keyCredential on an Azure AD Application or Service Principal (which is not recommended). This vulnerability allows a user or service in the tenant with application read access to read the private key data that was added to the application. Azure AD addressed this vulnerability by preventing disclosure of any private key values added to the application. Microsoft has identified services that could manifest this vulnerability, and steps that customers should take to be protected. Refer to the FAQ section for more information. For more details on this issue, please refer to the MSRC Blog Entry. Affected product named by the advisory: Azure Active Directory.
High [CVE-2021-42291] Active Directory Domain Services Elevation of Privilege Vulnerability
Active Directory Domain Services Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2008 R2 Service Pack 1; Windows Server 2008 R2 Service Pack 1 (Server Core installation); Windows Server 2008 Service Pack 2; Windows Server 2008 Service Pack 2 (Server Core installation); and 11 more. Affected products named by the advisory: Windows Server 2012 (Server Core installation); Windows Server 2012 R2 (Server Core installation); Windows Server 2016 (Server Core installation); Windows Server 2019 (Server Core installation); and 3 more.
High [CVE-2021-42287] Active Directory Domain Services Elevation of Privilege Vulnerability
Active Directory Domain Services Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server 2022; Windows Server version 2004; and 11 more. Affected products named by the advisory: Windows Server version 20H2; Windows Server 2016 (Server Core installation); Windows Server 2008 Service Pack 2 (Server Core installation); Windows Server 2008 Service Pack 2; and 3 more.
High [CVE-2021-42286] Windows Core Shell SI Host Extension Framework for Composable Shell Elevation of Privilege Vulnerability
Windows Core Shell SI Host Extension Framework for Composable Shell Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server version 2004; Windows Server version 20H2.
High [CVE-2021-42285] Windows Kernel Elevation of Privilege Vulnerability
Windows Kernel Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2008 R2 Service Pack 1; Windows Server 2008 R2 Service Pack 1 (Server Core installation); Windows Server 2012; Windows Server 2012 (Server Core installation); and 9 more. Affected products named by the advisory: Windows Server 2012 R2 (Server Core installation); Windows Server 2016 (Server Core installation); Windows Server 2019 (Server Core installation); Windows Server 2022; and 2 more.
High [CVE-2021-42283] NTFS Elevation of Privilege Vulnerability
NTFS Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2008 R2 Service Pack 1; Windows Server 2008 R2 Service Pack 1 (Server Core installation); Windows Server 2008 Service Pack 2; Windows Server 2008 Service Pack 2 (Server Core installation); and 11 more. Affected products named by the advisory: Windows Server 2012 (Server Core installation); Windows Server 2012 R2 (Server Core installation); Windows Server 2016 (Server Core installation); Windows Server 2019 (Server Core installation); and 3 more.
High [CVE-2021-42276] Microsoft Windows Media Foundation Remote Code Execution Vulnerability
Microsoft Windows Media Foundation Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2016; Windows Server 2016 (Server Core installation); Windows Server 2019; Windows Server 2019 (Server Core installation); and 3 more. Affected products named by the advisory: Windows Server 2022; Windows Server version 2004; Windows Server version 20H2.
High [CVE-2021-42275] Microsoft COM for Windows Remote Code Execution Vulnerability
Microsoft COM for Windows Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2008 R2 Service Pack 1; Windows Server 2008 R2 Service Pack 1 (Server Core installation); Windows Server 2008 Service Pack 2; Windows Server 2008 Service Pack 2 (Server Core installation); and 11 more. Affected products named by the advisory: Windows Server 2012 (Server Core installation); Windows Server 2012 R2 (Server Core installation); Windows Server 2016 (Server Core installation); Windows Server 2019 (Server Core installation); and 3 more.
High [CVE-2021-41378] Windows NTFS Remote Code Execution Vulnerability
Windows NTFS Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server 2022; Windows Server version 2004; and 1 more. Affected products named by the advisory: Windows Server version 20H2.
High [CVE-2021-41377] Windows Fast FAT File System Driver Elevation of Privilege Vulnerability
Windows Fast FAT File System Driver Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2008 R2 Service Pack 1; Windows Server 2008 R2 Service Pack 1 (Server Core installation); Windows Server 2008 Service Pack 2; Windows Server 2008 Service Pack 2 (Server Core installation); and 11 more. Affected products named by the advisory: Windows Server 2012 (Server Core installation); Windows Server 2012 R2 (Server Core installation); Windows Server 2016 (Server Core installation); Windows Server 2019 (Server Core installation); and 3 more.
High [CVE-2021-41366] Credential Security Support Provider Protocol (CredSSP) Elevation of Privilege Vulnerability
Credential Security Support Provider Protocol (CredSSP) Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2012; Windows Server 2012 (Server Core installation); Windows Server 2012 R2; Windows Server 2012 R2 (Server Core installation); and 7 more. Affected products named by the advisory: Windows Server 2016 (Server Core installation); Windows Server 2019 (Server Core installation); Windows Server 2022; Windows Server version 2004; and 1 more.
High [CVE-2021-41356] Windows Denial of Service Vulnerability
Windows Denial of Service Vulnerability Affected products named by the advisory: Windows Server 2016; Windows Server 2016 (Server Core installation); Windows Server 2019; Windows Server 2019 (Server Core installation); and 3 more. Affected products named by the advisory: Windows Server 2022; Windows Server version 2004; Windows Server version 20H2.
High [CVE-2021-38666] Remote Desktop Client Remote Code Execution Vulnerability
Remote Desktop Client Remote Code Execution Vulnerability Affected products named by the advisory: Remote Desktop client for Windows Desktop; Windows Server 2008 R2 Service Pack 1; Windows Server 2008 R2 Service Pack 1 (Server Core installation); Windows Server 2008 Service Pack 2; and 12 more. Affected products named by the advisory: Windows Server 2008 Service Pack 2 (Server Core installation); Windows Server 2012 (Server Core installation); Windows Server 2012 R2 (Server Core installation); Windows Server 2016 (Server Core installation); and 4 more.
High [CVE-2021-38665] Remote Desktop Protocol Client Information Disclosure Vulnerability
Remote Desktop Protocol Client Information Disclosure Vulnerability Affected products named by the advisory: Remote Desktop client for Windows Desktop; Windows Server 2008 R2 Service Pack 1; Windows Server 2012; Windows Server 2012 R2; and 3 more. Affected products named by the advisory: Windows Server 2016; Windows Server 2019; Windows Server 2022.
High [CVE-2021-36957] Windows Desktop Bridge Elevation of Privilege Vulnerability
Windows Desktop Bridge Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2016; Windows Server 2016 (Server Core installation); Windows Server 2019; Windows Server 2019 (Server Core installation); and 3 more. Affected products named by the advisory: Windows Server 2022; Windows Server version 2004; Windows Server version 20H2.
High [CVE-2021-40444] Microsoft MSHTML Remote Code Execution Vulnerability
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.
High [CVE-2021-40447] Windows Print Spooler Elevation of Privilege Vulnerability
Windows Print Spooler Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2008 R2 Service Pack 1; Windows Server 2008 R2 Service Pack 1 (Server Core installation); Windows Server 2008 Service Pack 2; Windows Server 2008 Service Pack 2 (Server Core installation); and 11 more. Affected products named by the advisory: Windows Server 2012 (Server Core installation); Windows Server 2012 R2 (Server Core installation); Windows Server 2016 (Server Core installation); Windows Server 2019 (Server Core installation); and 3 more.