Windows Server Vulnerabilities & Security Advisories
2401 advisories tracked · Microsoft Security Update Guide (MSRC) · 64 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: 112 critical, 1675 high, 723 medium, 6 low.
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 Windows Server advisories
Medium [CVE-2021-33760] Media Foundation Information Disclosure Vulnerability
Media Foundation Information Disclosure Vulnerability Affected products named by the advisory: Windows Server version 2004; Windows Server version 20H2; Windows Server, version 1909 (Server Core installation).
Medium [CVE-2021-33757] Windows Security Account Manager Remote Protocol Security Feature Bypass Vulnerability
Windows Security Account Manager Remote Protocol Security Feature Bypass 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 10 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 2 more.
Medium [CVE-2021-33755] Windows Hyper-V Denial of Service Vulnerability
Windows Hyper-V Denial of Service Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2.
Medium [CVE-2021-33744] Windows Secure Kernel Mode Security Feature Bypass Vulnerability
Windows Secure Kernel Mode Security Feature Bypass Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2.
Medium [CVE-2021-31961] Windows InstallService Elevation of Privilege Vulnerability
Windows InstallService Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2.
High [CVE-2021-1675 +1] Windows Print Spooler Remote Code Execution Vulnerability
A remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged file operations. 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. UPDATE July 7, 2021: The security update for Windows Server 2012, Windows Server 2016 and Windows 10, Version 1607 have been released. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. If you are unable to install these updates, see the FAQ and Workaround sections in this CVE for information on how to help protect your system from this vulnerability. In addition to installing the updates, in order to secure your system, you must confirm that the following registry settings are set to 0 (zero) or are not defined (Note: These registry keys do not exist by default, and therefore are already at the secure setting.), also that your Group Policy setting are correct (see FAQ): HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Printers\PointAndPrint NoWarningNoElevationOnInstall = 0 (DWORD) or not defined (default setting) Having NoWarningNoElevationOnInstall set to 1 makes your system vulnerable by design.
Critical [CVE-2021-26897] Windows DNS Server Remote Code Execution Vulnerability
Windows DNS Server 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.
Critical [CVE-2021-26867] Windows Hyper-V Remote Code Execution Vulnerability
Windows Hyper-V Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server version 2004; Windows Server version 20H2; Windows Server, version 1909 (Server Core installation).
High [CVE-2021-27077] Windows Win32k Elevation of Privilege Vulnerability
Windows Win32k 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-2021-27070] Windows 10 Update Assistant Elevation of Privilege Vulnerability
Windows 10 Update Assistant Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server version 2004; Windows Server version 20H2.
High [CVE-2021-27063] Windows DNS Server Denial of Service Vulnerability
Windows DNS Server Denial of Service 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-2021-26900] Windows Win32k Elevation of Privilege Vulnerability
Windows Win32k Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server version 2004; Windows Server version 20H2; Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26899] Windows UPnP Device Host Elevation of Privilege Vulnerability
Windows UPnP Device Host 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-2021-26891] Windows Container Execution Agent Elevation of Privilege Vulnerability
Windows Container Execution Agent 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 version 2004; Windows Server version 20H2; Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26890] Application Virtualization Remote Code Execution Vulnerability
Application Virtualization Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2; and 1 more. Affected products named by the advisory: Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26889] Windows Update Stack Elevation of Privilege Vulnerability
Windows Update Stack Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2; and 1 more. Affected products named by the advisory: Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26887] Microsoft Windows Folder Redirection Elevation of Privilege Vulnerability
An elevation of privilege vulnerability exists in Microsoft Windows when Folder redirection has been enabled via Group Policy. When folder redirection file server is co-located with Terminal server, an attacker who successfully exploited the vulnerability would be able to begin redirecting another user's personal data to a created folder. To exploit the vulnerability, an attacker can create a new folder under the Folder Redirection root path and create a junction on a newly created User folder. When the new user logs in, Folder Redirection would start redirecting to the folder and copying personal data. This elevation of privilege vulnerability can only be addressed by reconfiguring Folder Redirection with Offline files and restricting permissions, and NOT via a security update for affected Windows Servers. See the FAQ section of this CVE for configuration guidance. 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-2021-26882] Remote Access API Elevation of Privilege Vulnerability
Remote Access API 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-2021-26881] Microsoft Windows Media Foundation Remote Code Execution Vulnerability
Microsoft Windows Media Foundation 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 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 version 2004; and 2 more.
High [CVE-2021-26880] Windows Storage Spaces Controller Elevation of Privilege Vulnerability
Windows Storage Spaces Controller 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 version 2004; Windows Server version 20H2; Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26879] Windows Network Address Translation (NAT) Denial of Service Vulnerability
Windows Network Address Translation (NAT) Denial of Service Vulnerability Affected products named by the advisory: Windows Server 2012 R2; Windows Server 2012 R2 (Server Core installation); Windows Server 2016; Windows Server 2016 (Server Core installation); and 5 more. Affected products named by the advisory: Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2; Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26876] OpenType Font Parsing Remote Code Execution Vulnerability
OpenType Font Parsing Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2; and 1 more. Affected products named by the advisory: Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26874] Windows Overlay Filter Elevation of Privilege Vulnerability
Windows Overlay Filter Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2; and 1 more. Affected products named by the advisory: Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26873] Windows User Profile Service Elevation of Privilege Vulnerability
Windows User Profile Service 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-2021-26870] Windows Projected File System Elevation of Privilege Vulnerability
Windows Projected File System Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2; and 1 more. Affected products named by the advisory: Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26868] Windows Graphics Component Elevation of Privilege Vulnerability
Windows Graphics Component 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 version 2004; Windows Server version 20H2; and 1 more.
High [CVE-2021-26866] Windows Update Service Elevation of Privilege Vulnerability
Windows Update Service 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 version 2004; Windows Server version 20H2; Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26864] Windows Virtual Registry Provider Elevation of Privilege Vulnerability
Windows Virtual Registry Provider 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 version 2004; Windows Server version 20H2; Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26863] Windows Win32k Elevation of Privilege Vulnerability
Windows Win32k Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2; and 1 more. Affected products named by the advisory: Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26861] Windows Graphics Component Remote Code Execution Vulnerability
Windows Graphics Component 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-2021-26860] Windows App-V Overlay Filter Elevation of Privilege Vulnerability
Windows App-V Overlay Filter Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2; and 1 more. Affected products named by the advisory: Windows Server, version 1909 (Server Core installation).
High [CVE-2021-24095] DirectX Elevation of Privilege Vulnerability
DirectX Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2; and 1 more. Affected products named by the advisory: Windows Server, version 1909 (Server Core installation).
High [CVE-2021-24090] Windows Error Reporting Elevation of Privilege Vulnerability
Windows Error Reporting Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server version 2004; Windows Server version 20H2; Windows Server, version 1909 (Server Core installation).
High [CVE-2021-1729] Windows Update Stack Setup Elevation of Privilege Vulnerability
Windows Update Stack Setup Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2; and 1 more. Affected products named by the advisory: Windows Server, version 1909 (Server Core installation).
Medium [CVE-2021-26892] Windows Extensible Firmware Interface Security Feature Bypass Vulnerability
Windows Extensible Firmware Interface Security Feature Bypass 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 version 2004; Windows Server version 20H2; Windows Server, version 1909 (Server Core installation).
Medium [CVE-2021-26886] User Profile Service Denial of Service Vulnerability
User Profile Service Denial of Service 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 version 2004; Windows Server version 20H2; and 1 more.
Medium [CVE-2021-26884] Windows Media Photo Codec Information Disclosure Vulnerability
Windows Media Photo Codec Information Disclosure 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 version 2004; Windows Server version 20H2; and 1 more.
Medium [CVE-2021-26869] Windows ActiveX Installer Service Information Disclosure Vulnerability
Windows ActiveX Installer Service Information Disclosure 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 version 2004; and 2 more.
Medium [CVE-2021-24107] Windows Event Tracing Information Disclosure Vulnerability
Windows Event Tracing Information Disclosure 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-2021-1732] Windows Win32k Elevation of Privilege Vulnerability
Windows Win32k Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server, version 1909 (Server Core installation); Windows Server version 2004; and 1 more. Affected products named by the advisory: Windows Server version 20H2.
High [CVE-2020-1190] Windows State Repository Service Elevation of Privilege Vulnerability
An elevation of privilege vulnerability exists when the Windows State Repository Service improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context. An attacker could exploit this vulnerability by running a specially crafted application on the victim system. The update addresses the vulnerability by correcting the way the Windows State Repository Service handles objects in memory. 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, version 1803 (Server Core Installation); Windows Server, version 1903 (Server Core installation); Windows Server, version 1909 (Server Core installation).
High [CVE-2020-1176] Jet Database Engine Remote Code Execution Vulnerability
A remote code execution vulnerability exists when the Windows Jet Database Engine improperly handles objects in memory. An attacker who successfully exploited this vulnerability could execute arbitrary code on a victim system. An attacker could exploit this vulnerability by enticing a victim to open a specially crafted file. The update addresses the vulnerability by correcting the way the Windows Jet Database Engine handles objects in memory. 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-2020-1166] Windows Clipboard Service Elevation of Privilege Vulnerability
An elevation of privilege vulnerability exists when Windows improperly handles calls to Clipboard Service. An attacker who successfully exploited this vulnerability could run arbitrary code in the security context of the local system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control over an affected system. The update addresses the vulnerability by correcting how Windows handles calls to Clipboard Service. Affected products named by the advisory: Windows Server, version 1903 (Server Core installation); Windows Server, version 1909 (Server Core installation).
High [CVE-2020-1164] Windows Runtime Elevation of Privilege Vulnerability
An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context. An attacker could exploit this vulnerability by running a specially crafted application on the victim system. The update addresses the vulnerability by correcting the way the Windows Runtime handles objects in memory. 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, version 1803 (Server Core Installation); Windows Server, version 1903 (Server Core installation); Windows Server, version 1909 (Server Core installation).
High [CVE-2020-1154] Windows Common Log File System Driver Elevation of Privilege Vulnerability
An elevation of privilege vulnerability exists when the Windows Common Log File System (CLFS) driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run processes in an elevated context. To exploit the vulnerability, an attacker would first have to log on to the system, and then run a specially crafted application to take control over the affected system. The security update addresses the vulnerability by correcting how CLFS handles objects in memory. 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-2020-1155] Windows Runtime Elevation of Privilege Vulnerability
An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context. An attacker could exploit this vulnerability by running a specially crafted application on the victim system. The update addresses the vulnerability by correcting the way the Windows Runtime handles objects in memory. Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server, version 1803 (Server Core Installation); Windows Server, version 1903 (Server Core installation); and 1 more. Affected products named by the advisory: Windows Server, version 1909 (Server Core installation).
High [CVE-2020-1153] Microsoft Graphics Components Remote Code Execution Vulnerability
A remote code execution vulnerability exists in the way that Microsoft Graphics Components handle objects in memory. An attacker who successfully exploited the vulnerability could execute arbitrary code on a target system. To exploit the vulnerability, a user would have to open a specially crafted file. The security update addresses the vulnerability by correcting how Microsoft Graphics Components handle objects in memory. 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-2020-1149] Windows Runtime Elevation of Privilege Vulnerability
An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context. An attacker could exploit this vulnerability by running a specially crafted application on the victim system. The update addresses the vulnerability by correcting the way the Windows Runtime handles objects in memory. Affected products named by the advisory: Windows Server 2012 R2; Windows Server 2012 R2 (Server Core installation); Windows Server 2016; Windows Server 2016 (Server Core installation); and 5 more. Affected products named by the advisory: Windows Server 2019 (Server Core installation); Windows Server, version 1803 (Server Core Installation); Windows Server, version 1903 (Server Core installation); Windows Server, version 1909 (Server Core installation).
High [CVE-2020-1150] Media Foundation Memory Corruption Vulnerability
A memory corruption vulnerability exists when Windows Media Foundation improperly handles objects in memory. An attacker who successfully exploited the vulnerability could install programs; view, change, or delete data; or create new accounts with full user rights. There are multiple ways an attacker could exploit the vulnerability, such as by convincing a user to open a specially crafted document, or by convincing a user to visit a malicious webpage. The security update addresses the vulnerability by correcting how Windows Media Foundation handles objects in memory. Affected products named by the advisory: Windows Server 2008 R2 Service Pack 1; Windows Server 2008 R2 Service Pack 1 (Server Core installation).
High [CVE-2020-1143] Win32k Elevation of Privilege Vulnerability
An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The update addresses this vulnerability by correcting how the Windows kernel-mode driver handles objects in memory. 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.
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