Microsoft addresses 108 CVEs, including CVE-2021-28310 — which has reportedly been exploited in the wild — as well as four new remote code execution vulnerabilities in Microsoft Exchange.

Microsoft’s April 2021 Patch Tuesday Addresses 108 CVEs (CVE-2021-28310)

Win32k Elevation of Privilege Vulnerability

The remote Windows host is missing a security update. Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Windows host is missing security updates. It is, therefore, affected by multiple vulnerabilities:

  - Win32k Elevation of Privilege Vulnerability (CVE-2021-27072, CVE-2021-28310)

  - Windows Media Photo Codec Information Disclosure Vulnerability (CVE-2021-27079)

  - Windows Event Tracing Elevation of Privilege Vulnerability (CVE-2021-27088)

  - Microsoft Internet Messaging API Remote Code Execution Vulnerability (CVE-2021-27089)

  - Azure AD Web Sign-in Security Feature Bypass Vulnerability (CVE-2021-27092)

  - Windows Kernel Information Disclosure Vulnerability (CVE-2021-27093, CVE-2021-28309)

  - Windows Early Launch Antimalware Driver Security Feature Bypass Vulnerability (CVE-2021-27094,     CVE-2021-28447)

  - Windows Media Video Decoder Remote Code Execution Vulnerability (CVE-2021-27095, CVE-2021-28315)

  - NTFS Elevation of Privilege Vulnerability (CVE-2021-27096)

  - Windows Installer Spoofing Vulnerability (CVE-2021-26413)

  - Windows Installer Elevation of Privilege Vulnerability (CVE-2021-26415, CVE-2021-28440)

  - Windows Hyper-V Denial of Service Vulnerability (CVE-2021-26416)

  - Windows Overlay Filter Information Disclosure Vulnerability (CVE-2021-26417)

  - Windows Application Compatibility Cache Denial of Service Vulnerability (CVE-2021-28311)

  - Windows NTFS Denial of Service Vulnerability (CVE-2021-28312)

  - Diagnostics Hub Standard Collector Service Elevation of Privilege Vulnerability (CVE-2021-28313,     CVE-2021-28321, CVE-2021-28322)

  - Windows Hyper-V Elevation of Privilege Vulnerability (CVE-2021-28314)

  - Windows WLAN AutoConfig Service Security Feature Bypass Vulnerability (CVE-2021-28316)

  - Microsoft Windows Codecs Library Information Disclosure Vulnerability (CVE-2021-28317)

  - Windows GDI+ Information Disclosure Vulnerability (CVE-2021-28318)

  - Windows TCP/IP Driver Denial of Service Vulnerability (CVE-2021-28319, CVE-2021-28439)

  - Windows Resource Manager PSM Service Extension Elevation of Privilege Vulnerability (CVE-2021-28320)

  - Windows DNS Information Disclosure Vulnerability (CVE-2021-28323, CVE-2021-28328)

  - Windows SMB Information Disclosure Vulnerability (CVE-2021-28325)

  - Windows AppX Deployment Server Denial of Service Vulnerability (CVE-2021-28326)

  - Remote Procedure Call Runtime Remote Code Execution Vulnerability (CVE-2021-28327, CVE-2021-28329,     CVE-2021-28330, CVE-2021-28331, CVE-2021-28332, CVE-2021-28333, CVE-2021-28334, CVE-2021-28335,     CVE-2021-28336, CVE-2021-28337, CVE-2021-28338, CVE-2021-28339, CVE-2021-28340, CVE-2021-28341,     CVE-2021-28342, CVE-2021-28343, CVE-2021-28344, CVE-2021-28345, CVE-2021-28346, CVE-2021-28352,     CVE-2021-28353, CVE-2021-28354, CVE-2021-28355, CVE-2021-28356, CVE-2021-28357, CVE-2021-28358,     CVE-2021-28434)

  - Windows Speech Runtime Elevation of Privilege Vulnerability (CVE-2021-28347, CVE-2021-28351,     CVE-2021-28436)

  - Windows GDI+ Remote Code Execution Vulnerability (CVE-2021-28348, CVE-2021-28349, CVE-2021-28350)

  - Windows Event Tracing Information Disclosure Vulnerability (CVE-2021-28435)

  - Windows Installer Information Disclosure Vulnerability (CVE-2021-28437)

  - Windows Console Driver Denial of Service Vulnerability (CVE-2021-28438, CVE-2021-28443)

  - Windows Hyper-V Information Disclosure Vulnerability (CVE-2021-28441)

  - Windows TCP/IP Information Disclosure Vulnerability (CVE-2021-28442)

  - Windows Hyper-V Security Feature Bypass Vulnerability (CVE-2021-28444)

  - N/A (CVE-2021-28445, CVE-2021-28446)

  - Windows Services and Controller App Elevation of Privilege Vulnerability (CVE-2021-27086)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Windows host is missing security updates. It is, therefore, affected by multiple vulnerabilities:

  - Win32k Elevation of Privilege Vulnerability (CVE-2021-27072, CVE-2021-28310)

  - Windows Media Photo Codec Information Disclosure Vulnerability (CVE-2021-27079)

  - Windows Event Tracing Elevation of Privilege Vulnerability (CVE-2021-27088)

  - Microsoft Internet Messaging API Remote Code Execution Vulnerability (CVE-2021-27089)

  - Azure AD Web Sign-in Security Feature Bypass Vulnerability (CVE-2021-27092)

  - Windows Kernel Information Disclosure Vulnerability (CVE-2021-27093, CVE-2021-28309)

  - Windows Early Launch Antimalware Driver Security Feature Bypass Vulnerability (CVE-2021-27094,     CVE-2021-28447)

  - Windows Media Video Decoder Remote Code Execution Vulnerability (CVE-2021-27095, CVE-2021-28315)

  - NTFS Elevation of Privilege Vulnerability (CVE-2021-27096)

  - Windows Installer Spoofing Vulnerability (CVE-2021-26413)

  - Windows Installer Elevation of Privilege Vulnerability (CVE-2021-26415, CVE-2021-28440)

  - Windows Application Compatibility Cache Denial of Service Vulnerability (CVE-2021-28311)

  - Diagnostics Hub Standard Collector Service Elevation of Privilege Vulnerability (CVE-2021-28313,     CVE-2021-28321, CVE-2021-28322)

  - Windows WLAN AutoConfig Service Security Feature Bypass Vulnerability (CVE-2021-28316)

  - Microsoft Windows Codecs Library Information Disclosure Vulnerability (CVE-2021-28317)

  - Windows GDI+ Information Disclosure Vulnerability (CVE-2021-28318)

  - Windows TCP/IP Driver Denial of Service Vulnerability (CVE-2021-28319, CVE-2021-28439)

  - Windows Resource Manager PSM Service Extension Elevation of Privilege Vulnerability (CVE-2021-28320)

  - Windows DNS Information Disclosure Vulnerability (CVE-2021-28323, CVE-2021-28328)

  - Windows SMB Information Disclosure Vulnerability (CVE-2021-28325)

  - Windows AppX Deployment Server Denial of Service Vulnerability (CVE-2021-28326)

  - Remote Procedure Call Runtime Remote Code Execution Vulnerability (CVE-2021-28327, CVE-2021-28329,     CVE-2021-28330, CVE-2021-28331, CVE-2021-28332, CVE-2021-28333, CVE-2021-28334, CVE-2021-28335,     CVE-2021-28336, CVE-2021-28337, CVE-2021-28338, CVE-2021-28339, CVE-2021-28340, CVE-2021-28341,     CVE-2021-28342, CVE-2021-28343, CVE-2021-28344, CVE-2021-28345, CVE-2021-28346, CVE-2021-28352,     CVE-2021-28353, CVE-2021-28354, CVE-2021-28355, CVE-2021-28356, CVE-2021-28357, CVE-2021-28358,     CVE-2021-28434)

  - Windows Speech Runtime Elevation of Privilege Vulnerability (CVE-2021-28347, CVE-2021-28351,     CVE-2021-28436)

  - Windows GDI+ Remote Code Execution Vulnerability (CVE-2021-28348, CVE-2021-28349, CVE-2021-28350)

  - Windows Event Tracing Information Disclosure Vulnerability (CVE-2021-28435)

  - Windows Installer Information Disclosure Vulnerability (CVE-2021-28437)

  - Windows Console Driver Denial of Service Vulnerability (CVE-2021-28438, CVE-2021-28443)

  - Windows TCP/IP Information Disclosure Vulnerability (CVE-2021-28442)

  - Windows Hyper-V Security Feature Bypass Vulnerability (CVE-2021-28444)

  - Windows Services and Controller App Elevation of Privilege Vulnerability (CVE-2021-27086)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Windows host is missing security updates. It is, therefore, affected by multiple vulnerabilities:

  - Win32k Elevation of Privilege Vulnerability (CVE-2021-27072, CVE-2021-28310)

  - Windows Media Photo Codec Information Disclosure Vulnerability (CVE-2021-27079)

  - Windows Event Tracing Elevation of Privilege Vulnerability (CVE-2021-27088)

  - Microsoft Internet Messaging API Remote Code Execution Vulnerability (CVE-2021-27089)

  - Azure AD Web Sign-in Security Feature Bypass Vulnerability (CVE-2021-27092)

  - Windows Kernel Information Disclosure Vulnerability (CVE-2021-27093, CVE-2021-28309)

  - Windows Early Launch Antimalware Driver Security Feature Bypass Vulnerability (CVE-2021-27094,     CVE-2021-28447)

  - Windows Media Video Decoder Remote Code Execution Vulnerability (CVE-2021-27095, CVE-2021-28315)

  - NTFS Elevation of Privilege Vulnerability (CVE-2021-27096)

  - Windows Installer Spoofing Vulnerability (CVE-2021-26413)

  - Windows Installer Elevation of Privilege Vulnerability (CVE-2021-26415, CVE-2021-28440)

  - Windows Hyper-V Denial of Service Vulnerability (CVE-2021-26416)

  - Windows Overlay Filter Information Disclosure Vulnerability (CVE-2021-26417)

  - Windows Application Compatibility Cache Denial of Service Vulnerability (CVE-2021-28311)

  - Windows NTFS Denial of Service Vulnerability (CVE-2021-28312)

  - Diagnostics Hub Standard Collector Service Elevation of Privilege Vulnerability (CVE-2021-28313,     CVE-2021-28321, CVE-2021-28322)

  - Windows Hyper-V Elevation of Privilege Vulnerability (CVE-2021-28314)

  - Windows WLAN AutoConfig Service Security Feature Bypass Vulnerability (CVE-2021-28316)

  - Microsoft Windows Codecs Library Information Disclosure Vulnerability (CVE-2021-28317)

  - Windows GDI+ Information Disclosure Vulnerability (CVE-2021-28318)

  - Windows TCP/IP Driver Denial of Service Vulnerability (CVE-2021-28319, CVE-2021-28439)

  - Windows Resource Manager PSM Service Extension Elevation of Privilege Vulnerability (CVE-2021-28320)

  - Windows DNS Information Disclosure Vulnerability (CVE-2021-28323, CVE-2021-28328)

  - Windows SMB Information Disclosure Vulnerability (CVE-2021-28325)

  - Windows AppX Deployment Server Denial of Service Vulnerability (CVE-2021-28326)

  - Remote Procedure Call Runtime Remote Code Execution Vulnerability (CVE-2021-28327, CVE-2021-28329,     CVE-2021-28330, CVE-2021-28331, CVE-2021-28332, CVE-2021-28333, CVE-2021-28334, CVE-2021-28335,     CVE-2021-28336, CVE-2021-28337, CVE-2021-28338, CVE-2021-28339, CVE-2021-28340, CVE-2021-28341,     CVE-2021-28342, CVE-2021-28343, CVE-2021-28344, CVE-2021-28345, CVE-2021-28346, CVE-2021-28352,     CVE-2021-28353, CVE-2021-28354, CVE-2021-28355, CVE-2021-28356, CVE-2021-28357, CVE-2021-28358,     CVE-2021-28434)

  - Windows Speech Runtime Elevation of Privilege Vulnerability (CVE-2021-28347, CVE-2021-28351,     CVE-2021-28436)

  - Windows GDI+ Remote Code Execution Vulnerability (CVE-2021-28348, CVE-2021-28349, CVE-2021-28350)

  - Windows Event Tracing Information Disclosure Vulnerability (CVE-2021-28435)

  - Windows Installer Information Disclosure Vulnerability (CVE-2021-28437)

  - Windows Console Driver Denial of Service Vulnerability (CVE-2021-28438, CVE-2021-28443)

  - Windows Hyper-V Information Disclosure Vulnerability (CVE-2021-28441)

  - Windows TCP/IP Information Disclosure Vulnerability (CVE-2021-28442)

  - Windows Hyper-V Security Feature Bypass Vulnerability (CVE-2021-28444)

  - Windows Network File System Remote Code Execution Vulnerability (CVE-2021-28445)   
  - Windows Portmapping Information Disclosure Vulnerability (CVE-2021-28446)

  - Windows Services and Controller App Elevation of Privilege Vulnerability (CVE-2021-27086)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
149259	KB5001330: Windows 10 Version 2004 / Windows 10 Version 20H2 Security Update (April 2021)	Nessus	Windows : Microsoft Bulletins	critical
148473	KB5001342: Windows 10 version 1809 / Windows Server 2019 Security Update (Apr 2021)	Nessus	Windows : Microsoft Bulletins	critical
148468	KB5001339: Windows 10 version 1803 Security Update (April 2021)	Nessus	Windows : Microsoft Bulletins	critical
148461	KB5001337: Windows 10 version 1909 / Windows Server 1909 Security Update (Apr 2021)	Nessus	Windows : Microsoft Bulletins	critical

Detections

Analytics

CVE-2021-28310

high

Tenable Plugins

critical

critical

critical

critical