Microsoft · Security update · May 12, 2020

KB4556826: May 2020 cumulative update for Windows 10 1507

KB4556826, released May 12, 2020, fixes 56 CVEs across 10 products. One of them is being exploited (CVE-2020-1054); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

Patch now1 on CISA KEVUnsupported product

CVEs closed

4 rated Critical

Exploited

CVE-2020-1054

Exploitation more likely

Microsoft's assessment

Highest EPSS

0.5388

99th percentile

Priority of the 56 CVEs

Patch now 1
                                Urgent 9
                                High 33
                                Routine 13

Applies to

Product	Build after install
Internet Explorer 11 on Windows 10 for 32-bit Systems	10240.18575
Internet Explorer 11 on Windows 10 for x64-based Systems	10240.18575
Microsoft .NET Framework 3.5 AND 4.6/4.6.1/4.6.2 on Windows 10 for 32-bit Systems	10240.18575
Microsoft .NET Framework 3.5 AND 4.6/4.6.1/4.6.2 on Windows 10 for x64-based Systems	10240.18575
Microsoft .NET Framework 4.6/4.6.1/4.6.2 on Windows 10 for 32-bit Systems	10240.18575
Microsoft .NET Framework 4.6/4.6.1/4.6.2 on Windows 10 for x64-based Systems	10240.18575
Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems	10240.18575
Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems	10240.18575
Windows 10 for 32-bit Systems	10240.18575
Windows 10 for x64-based Systems	10240.18575

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-2020-0605	.NET Framework	Remote Code Execution	n/a	0.1840	Exploitation Less Likely
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-2020-1136	Microsoft Windows	Remote Code Execution	7.8	0.0391	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-2020-1037	Microsoft Scripting Engine	Remote Code Execution	4.2	0.0224	Exploitation Less 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-2020-1108	.NET Core	Denial of Service	7.5	0.0646	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-2020-1139	Microsoft Windows	Elevation of Privilege	7.8	0.0258	Exploitation Less Likely
High	CVE-2020-1156	Microsoft Windows	Elevation of Privilege	7.8	0.0258	Exploitation Less Likely
High	CVE-2020-1157	Microsoft Windows	Elevation of Privilege	7.8	0.0258	Exploitation Less Likely
High	CVE-2020-1067	Microsoft Windows	Remote Code Execution	7.8	0.0254	Exploitation Less Likely
High	CVE-2020-1125	Microsoft Windows	Elevation of Privilege	7.0	0.0227	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/4556826

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