Microsoft · Security update · May 12, 2020

KB4556840: May 2020 security update

KB4556840, released May 12, 2020, fixes 34 CVEs across 3 products. One of them is being exploited (CVE-2020-1054); 1 on CISA KEV. Patch Radar priority: Patch now.

Patch now1 on CISA KEV

CVEs closed

1 rated Critical

Exploited

CVE-2020-1054

Exploitation more likely

Microsoft's assessment

Highest EPSS

0.5388

99th percentile

Priority of the 34 CVEs

Patch now 1
                                Urgent 6
                                High 17
                                Routine 10

Applies to

Product
Internet Explorer 11 on Windows Server 2012
Windows Server 2012
Windows Server 2012 (Server Core installation)

CVEs this fix closes

Priority	CVE	Component	Impact	CVSS	EPSS	Exploitation
Patch now	CVE-2020-1054	Microsoft Graphics Component	Elevation of Privilege	7.0	0.5388	KEVExploited
Urgent	CVE-2020-1062	Internet Explorer	Remote Code Execution	6.4	0.0624	More likely
Urgent	CVE-2020-1153	Microsoft Graphics Component	Remote Code Execution	7.8	0.0396	Exploitation Less Likely
Urgent	CVE-2020-1035	Microsoft Scripting Engine	Remote Code Execution	6.4	0.0325	More likely
Urgent	CVE-2020-1058	Microsoft Scripting Engine	Remote Code Execution	6.4	0.0318	More likely
Urgent	CVE-2020-1060	Microsoft Scripting Engine	Remote Code Execution	6.4	0.0318	More likely
Urgent	CVE-2020-1143	Microsoft Windows	Elevation of Privilege	7.0	0.0108	More likely
High	CVE-2020-1048	Microsoft Windows	Elevation of Privilege	7.8	0.1650	Exploitation Less Likely
High	CVE-2020-1179	Microsoft Graphics Component	Information Disclosure	n/a	0.0522	Exploitation Less Likely
High	CVE-2020-0909	Windows Hyper-V	Denial of Service	7.5	0.0473	Exploitation Less Likely
High	CVE-2020-1174	Microsoft JET Database Engine	Remote Code Execution	7.8	0.0380	Exploitation Less Likely
High	CVE-2020-1051	Microsoft JET Database Engine	Remote Code Execution	7.8	0.0377	Exploitation Less Likely
High	CVE-2020-1175	Microsoft JET Database Engine	Remote Code Execution	7.8	0.0377	Exploitation Less Likely
High	CVE-2020-1176	Microsoft JET Database Engine	Remote Code Execution	7.8	0.0377	Exploitation Less Likely
High	CVE-2020-1061	Windows Scripting	Remote Code Execution	7.5	0.0335	Exploitation Less Likely
High	CVE-2020-1112	Microsoft Windows	Elevation of Privilege	8.5	0.0329	Exploitation Less Likely
High	CVE-2020-1067	Microsoft Windows	Remote Code Execution	7.8	0.0254	Exploitation Less Likely
High	CVE-2020-1070	Microsoft Windows	Elevation of Privilege	7.8	0.0115	Exploitation Less Likely
High	CVE-2020-1079	Microsoft Windows	Elevation of Privilege	7.8	0.0099	Exploitation Less Likely
High	CVE-2020-1010	Microsoft Windows	Elevation of Privilege	7.8	0.0098	Exploitation Less Likely
High	CVE-2020-1081	Microsoft Windows	Elevation of Privilege	7.8	0.0095	Exploitation Less Likely
High	CVE-2020-1114	Windows Kernel	Elevation of Privilege	7.8	0.0095	Exploitation Less Likely
High	CVE-2020-1154	Common Log File System Driver	Elevation of Privilege	7.8	0.0095	Exploitation Less Likely
High	CVE-2020-1078	Microsoft Windows	Elevation of Privilege	7.8	0.0084	Exploitation Less Likely
Routine	CVE-2020-1113	Windows Task Scheduler	Security Feature Bypass	5.3	0.0631	Exploitation Less Likely

Released the same day

KB4484332
Microsoft SharePoint Server 2019
KB4484336
Microsoft SharePoint Enterprise Server 2016
KB4484338
Microsoft Excel 2016 (32-bit edition), Microsoft Excel 2016 (64-bit edition)
KB4484352
Microsoft SharePoint Enterprise Server 2013 Service Pack 1
KB4484364
Microsoft SharePoint Foundation 2013 Service Pack 1
KB4484365
Microsoft Excel 2013 RT Service Pack 1, Microsoft Excel 2013 Service Pack 1 (32-bit editions), Microsoft Excel 2013 Service Pack 1 (64-bit editions)
KB4484383
Microsoft SharePoint Server 2010 Service Pack 2
KB4484384
Microsoft Excel 2010 Service Pack 2 (32-bit editions), Microsoft Excel 2010 Service Pack 2 (64-bit editions)
KB4551853
Internet Explorer 11 on Windows 10 Version 1809 for 32-bit Systems, Internet Explorer 11 on Windows 10 Version 1809 for ARM64-based Systems, Internet Explorer 11 on Windows 10 Version 1809 for x64-based Systems and 10 more
KB4551998
Microsoft Dynamics 365 (on-premises) version 8.2
KB4552002
Microsoft Dynamics 365 (on-premises) version 9.0
KB4556798
Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1, Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1, Internet Explorer 11 on Windows 8.1 for 32-bit systems and 6 more

Vendor advisory

https://support.microsoft.com/help/4556840

For tools and AI agents

This page as data: JSON · Markdown

Link to this page

If this page saved you time, a link to it in your ticket, advisory or write-up helps others find it.

HTML

<a href="https://patchblox.com/security/fix/microsoft/kb4556840">KB4556840 on Patchblox Patch Radar</a>

Reusing the data? How to credit Patch Radar.

Which machines still need it?

Patchblox reads the OS build on every Windows machine, from Intune, ConfigMgr or its own agent, and shows which ones are still below the fixed build.

Get a demo

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.