Microsoft Server security updates, July 2021 (Patch Tuesday 2021-07-13)

Every Microsoft server-product CVE that the Microsoft Security Update Guide published in July 2021, including the Patch Tuesday release on 2021-07-13 and any out-of-band updates. Client-only products (Edge, Office apps, consumer Windows) are not tracked.

Advisories: 82
Critical: 3
High: 54
In CISA KEV: 8
CVEs: 83

Microsoft server CVEs, July 2021

Jul 16, 2021
Critical [CVE-2021-34458] Windows Kernel Remote Code Execution Vulnerability
Critical9.9
Jul 16, 2021
High [CVE-2021-34481] Windows Print Spooler Remote Code Execution Vulnerability
High8.8
Jul 16, 2021
High [CVE-2021-34467] Microsoft SharePoint Server Remote Code Execution Vulnerability
High7.1
Jul 16, 2021
High [CVE-2021-34462] Windows AppX Deployment Extensions Elevation of Privilege Vulnerability
High7.0
Jul 16, 2021
High [CVE-2021-34461] Windows Container Isolation FS Filter Driver Elevation of Privilege Vulnerability
High7.8
Jul 16, 2021
High [CVE-2021-34460] Windows Storage Spaces Controller Elevation of Privilege Vulnerability
High7.8
Jul 16, 2021
High [CVE-2021-34459] Windows AppContainer Elevation Of Privilege Vulnerability
High7.8
Jul 16, 2021
High [CVE-2021-34456] Windows Remote Access Connection Manager Elevation of Privilege Vulnerability
High7.8
Jul 16, 2021
High [CVE-2021-34455] Windows File History Service Elevation of Privilege Vulnerability
High7.8
Jul 16, 2021
High [CVE-2021-34450] Windows Hyper-V Remote Code Execution Vulnerability
High8.5
Jul 16, 2021
High [CVE-2021-34449] Win32k Elevation of Privilege Vulnerability
High7.0
Jul 16, 2021
High [CVE-2021-34446] Windows HTML Platforms Security Feature Bypass Vulnerability
High8.0
Jul 16, 2021
High [CVE-2021-34445] Windows Remote Access Connection Manager Elevation of Privilege Vulnerability
High7.8
Jul 16, 2021
High [CVE-2021-34441] Microsoft Windows Media Foundation Remote Code Execution Vulnerability
High7.8
Jul 16, 2021
High [CVE-2021-34442] Windows DNS Server Remote Code Execution Vulnerability
High8.8
Jul 16, 2021
High [CVE-2021-34439] Microsoft Windows Media Foundation Remote Code Execution Vulnerability
High7.8
Jul 16, 2021
High [CVE-2021-34438] Windows Font Driver Host Remote Code Execution Vulnerability
High7.8
Jul 16, 2021
Medium [CVE-2021-34457] Windows Remote Access Connection Manager Information Disclosure Vulnerability
Medium5.5
Jul 16, 2021
Medium [CVE-2021-34454] Windows Remote Access Connection Manager Information Disclosure Vulnerability
Medium5.5
Jul 16, 2021
Medium [CVE-2021-34448] Scripting Engine Memory Corruption Vulnerability
Medium6.8ExploitedCISA KEV
Jul 16, 2021
Medium [CVE-2021-34447] Windows MSHTML Platform Remote Code Execution Vulnerability
Medium6.8
Jul 16, 2021
Medium [CVE-2021-34444] Windows DNS Server Denial of Service Vulnerability
Medium6.5
Jul 16, 2021
Medium [CVE-2021-34440] GDI+ Information Disclosure Vulnerability
Medium5.5
Jul 14, 2021
Critical [CVE-2021-34523] Microsoft Exchange Server Elevation of Privilege Vulnerability
Critical9.0ExploitedCISA KEV
Jul 14, 2021
Critical [CVE-2021-34473] Microsoft Exchange Server Remote Code Execution Vulnerability
Critical9.1ExploitedCISA KEV
Jul 14, 2021
High [CVE-2021-34525] Windows DNS Server Remote Code Execution Vulnerability
High8.8
Jul 14, 2021
High [CVE-2021-34521] Raw Image Extension Remote Code Execution Vulnerability
High7.8
Jul 14, 2021
High [CVE-2021-34516] Win32k Elevation of Privilege Vulnerability
High7.8
Jul 14, 2021
High [CVE-2021-34514] Windows Kernel Elevation of Privilege Vulnerability
High7.8
Jul 14, 2021
High [CVE-2021-34513] Windows Storage Spaces Controller Elevation of Privilege Vulnerability
High7.8
Jul 14, 2021
High [CVE-2021-34512] Windows Storage Spaces Controller Elevation of Privilege Vulnerability
High7.8
Jul 14, 2021
High [CVE-2021-34511] Windows Installer Elevation of Privilege Vulnerability
High7.8
Jul 14, 2021
High [CVE-2021-34510] Windows Storage Spaces Controller Elevation of Privilege Vulnerability
High7.8
Jul 14, 2021
High [CVE-2021-34508] Windows Kernel Remote Code Execution Vulnerability
High8.8
Jul 14, 2021
High [CVE-2021-34504] Windows Address Book Remote Code Execution Vulnerability
High7.8
Jul 14, 2021
High [CVE-2021-34503] Microsoft Windows Media Foundation Remote Code Execution Vulnerability
High7.8
Jul 14, 2021
High [CVE-2021-34498] Windows GDI Elevation of Privilege Vulnerability
High7.8
Jul 14, 2021
High [CVE-2021-34492] Windows Certificate Spoofing Vulnerability
High8.1
Jul 14, 2021
High [CVE-2021-34490] Windows TCP/IP Driver Denial of Service Vulnerability
High7.5
Jul 14, 2021
High [CVE-2021-34489] DirectWrite Remote Code Execution Vulnerability
High7.8
Jul 14, 2021
High [CVE-2021-34488] Windows Console Driver Elevation of Privilege Vulnerability
High7.8
Jul 14, 2021
High [CVE-2021-34476] Bowser.sys Denial of Service Vulnerability
High7.5
Jul 14, 2021
High [CVE-2021-34470] Microsoft Exchange Server Elevation of Privilege Vulnerability
High8.0
Jul 14, 2021
High [CVE-2021-33788] Windows LSA Denial of Service Vulnerability
High7.5
Jul 14, 2021
High [CVE-2021-33786] Windows LSA Security Feature Bypass Vulnerability
High8.1
Jul 14, 2021
High [CVE-2021-33785] Windows AF_UNIX Socket Provider Denial of Service Vulnerability
High7.5
Jul 14, 2021
High [CVE-2021-33784] Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
High7.8
Jul 14, 2021
High [CVE-2021-33781] Azure AD Security Feature Bypass Vulnerability
High8.1
Jul 14, 2021
High [CVE-2021-33779] Windows AD FS Security Feature Bypass Vulnerability
High8.1
Jul 14, 2021
High [CVE-2021-33774] Windows Event Tracing Elevation of Privilege Vulnerability
High7.0
Jul 14, 2021
High [CVE-2021-33773] Windows Remote Access Connection Manager Elevation of Privilege Vulnerability
High7.8
Jul 14, 2021
High [CVE-2021-33772] Windows TCP/IP Driver Denial of Service Vulnerability
High7.5
Jul 14, 2021
High [CVE-2021-33771] Windows Kernel Elevation of Privilege Vulnerability
High7.8ExploitedCISA KEV
Jul 14, 2021
High [CVE-2021-33768] Microsoft Exchange Server Elevation of Privilege Vulnerability
High8.0
Jul 14, 2021
High [CVE-2021-33766] Microsoft Exchange Server Information Disclosure Vulnerability
High7.3ExploitedCISA KEV
Jul 14, 2021
High [CVE-2021-33759] Windows Desktop Bridge Elevation of Privilege Vulnerability
High7.8
Jul 14, 2021
High [CVE-2021-33758] Windows Hyper-V Denial of Service Vulnerability
High7.7
Jul 14, 2021
High [CVE-2021-33756] Windows DNS Snap-in Remote Code Execution Vulnerability
High8.8
Jul 14, 2021
High [CVE-2021-33743] Windows Projected File System Elevation of Privilege Vulnerability
High7.8
Jul 14, 2021
High [CVE-2021-33740] Windows Media Remote Code Execution Vulnerability
High7.8
Jul 14, 2021
High [CVE-2021-31206] Microsoft Exchange Server Remote Code Execution Vulnerability
High7.6
Jul 14, 2021
High [CVE-2021-31183] Windows TCP/IP Driver Denial of Service Vulnerability
High7.5
Jul 14, 2021
Medium [CVE-2021-34519] Microsoft SharePoint Server Information Disclosure Vulnerability
Medium5.3
Jul 14, 2021
Medium [CVE-2021-34517] Microsoft SharePoint Server Spoofing Vulnerability
Medium5.3
Jul 14, 2021
Medium [CVE-2021-34509] Storage Spaces Controller Information Disclosure Vulnerability
Medium5.5
Jul 14, 2021
Medium [CVE-2021-34507] Windows Remote Assistance Information Disclosure Vulnerability
Medium6.5
Jul 14, 2021
Medium [CVE-2021-34500] Windows Kernel Memory Information Disclosure Vulnerability
Medium6.3
Jul 14, 2021
Medium [CVE-2021-34497] Windows MSHTML Platform Remote Code Execution Vulnerability
Medium6.8
Jul 14, 2021
Medium [CVE-2021-34496] Windows GDI Information Disclosure Vulnerability
Medium5.5
Jul 14, 2021
Medium [CVE-2021-34493] Windows Partition Management Driver Elevation of Privilege Vulnerability
Medium6.7
Jul 14, 2021
Medium [CVE-2021-34491] Win32k Information Disclosure Vulnerability
Medium5.5
Jul 14, 2021
Medium [CVE-2021-33783] Windows SMB Information Disclosure Vulnerability
Medium6.5
Jul 14, 2021
Medium [CVE-2021-33782] Windows Authenticode Spoofing Vulnerability
Medium5.5
Jul 14, 2021
Medium [CVE-2021-33765] Windows Installer Spoofing Vulnerability
Medium6.2
Jul 14, 2021
Medium [CVE-2021-33764] Windows Key Distribution Center Information Disclosure Vulnerability
Medium5.9
Jul 14, 2021
Medium [CVE-2021-33763] Windows Remote Access Connection Manager Information Disclosure Vulnerability
Medium5.5
Jul 14, 2021
Medium [CVE-2021-33760] Media Foundation Information Disclosure Vulnerability
Medium5.5
Jul 14, 2021
Medium [CVE-2021-33757] Windows Security Account Manager Remote Protocol Security Feature Bypass Vulnerability
Medium5.3
Jul 14, 2021
Medium [CVE-2021-33755] Windows Hyper-V Denial of Service Vulnerability
Medium6.3
Jul 14, 2021
Medium [CVE-2021-33744] Windows Secure Kernel Mode Security Feature Bypass Vulnerability
Medium5.3
Jul 14, 2021
Medium [CVE-2021-31961] Windows InstallService Elevation of Privilege Vulnerability
Medium6.1
Jul 2, 2021
High [CVE-2021-1675 +1] Windows Print Spooler Remote Code Execution Vulnerability
High8.8ExploitedCISA KEV

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Dates are each advisory's publication date at the source, in UTC; a record with no source date is filed under the day VulniPulse first saw it.