Microsoft · Security update · January 3, 2018

KB4056891: January 2018 cumulative update for Windows 10 1703

KB4056891, released January 3, 2018, fixes 25 CVEs across 10 products. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.

UrgentUnsupported product

CVEs closed

10 rated Critical

Exploited

None reported

Exploitation more likely

Microsoft's assessment

Highest EPSS

0.8080

99th percentile

Priority of the 25 CVEs

Patch now 0
                                Urgent 15
                                High 3
                                Routine 7

Applies to

Product	Build after install
Internet Explorer 11 on Windows 10 Version 1703 for 32-bit Systems	15063.850
Internet Explorer 11 on Windows 10 Version 1703 for x64-based Systems	15063.850
Microsoft .NET Framework 3.5 on Windows 10 Version 1703 for 32-bit Systems	15063.850
Microsoft .NET Framework 3.5 on Windows 10 Version 1703 for x64-based Systems	15063.850
Microsoft .NET Framework 4.7 on Windows 10 Version 1703 for 32-bit Systems	15063.850
Microsoft .NET Framework 4.7 on Windows 10 Version 1703 for x64-based Systems	15063.850
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for 32-bit Systems	15063.850
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for x64-based Systems	15063.850
Windows 10 Version 1703 for 32-bit Systems	15063.850
Windows 10 Version 1703 for x64-based Systems	15063.850

CVEs this fix closes

Priority	CVE	Component	Impact	CVSS	EPSS	Exploitation
Urgent	CVE-2018-0758	Microsoft Scripting Engine	Remote Code Execution	4.2	0.8080	More likely
Urgent	CVE-2018-0769	Microsoft Scripting Engine	Remote Code Execution	4.2	0.7895	More likely
Urgent	CVE-2018-0770	Microsoft Scripting Engine	Remote Code Execution	4.2	0.7843	More likely
Urgent	CVE-2018-0776	Microsoft Scripting Engine	Remote Code Execution	4.2	0.7843	More likely
Urgent	CVE-2018-0777	Microsoft Scripting Engine	Remote Code Execution	4.2	0.7843	More likely
Urgent	CVE-2018-0767	Microsoft Scripting Engine	Information Disclosure	4.3	0.6547	Exploitation Unlikely
Urgent	CVE-2018-0780	Microsoft Scripting Engine	Information Disclosure	4.2	0.5857	More likely
Urgent	CVE-2018-0744	Windows Kernel	Elevation of Privilege	7.0	0.1502	More likely
Urgent	CVE-2018-0762	Microsoft Browsers	Remote Code Execution	4.2	0.1193	More likely
Urgent	CVE-2018-0772	Microsoft Browsers	Remote Code Execution	4.2	0.1193	More likely
Urgent	CVE-2018-0781	Microsoft Scripting Engine	Remote Code Execution	4.2	0.1115	Exploitation Unlikely
Urgent	CVE-2018-0746	Windows Kernel	Information Disclosure	4.7	0.0408	More likely
Urgent	CVE-2018-0745	Windows Kernel	Information Disclosure	4.7	0.0287	More likely
Urgent	CVE-2018-0754	Graphic Fonts	Information Disclosure	5.5	0.0228	More likely
Urgent	CVE-2018-0747	Windows Kernel	Information Disclosure	4.7	0.0208	More likely
High	CVE-2018-0764	.NET Framework	Denial of Service	n/a	0.0889	Exploitation Unlikely
High	CVE-2018-0786	.NET Framework	Security Feature Bypass	n/a	0.0369	Exploitation Unlikely
High	CVE-2018-0743	Windows Subsystem for Linux	Elevation of Privilege	7.0	0.0287	Exploitation Less Likely
Routine	CVE-2018-0753	Microsoft Windows	Denial of Service	5.9	0.0902	Exploitation Unlikely
Routine	CVE-2018-0766	Microsoft Edge	Information Disclosure	4.3	0.0826	Exploitation Unlikely
Routine	CVE-2018-0803	Microsoft Edge	Elevation of Privilege	3.1	0.0366	Exploitation Unlikely
Routine	CVE-2018-0749	Windows SMB Server	Elevation of Privilege	6.6	0.0321	Exploitation Less Likely
Routine	CVE-2018-0748	Windows Kernel	Elevation of Privilege	6.6	0.0278	Exploitation Less Likely
Routine	CVE-2018-0752	Windows Kernel	Elevation of Privilege	6.6	0.0278	Exploitation Less Likely
Routine	CVE-2018-0751	Windows Kernel	Elevation of Privilege	6.6	0.0276	Exploitation Less Likely

Released the same day

KB4056888
Internet Explorer 11 on Windows 10 Version 1511 for 32-bit Systems, Internet Explorer 11 on Windows 10 Version 1511 for x64-based Systems, Microsoft .NET Framework 3.5 on Windows 10 Version 1511 for 32-bit Systems and 7 more
KB4056890
Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems, Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems, Internet Explorer 11 on Windows Server 2016 and 15 more
KB4056892
Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems, Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems, Microsoft .NET Framework 3.5 on Windows 10 Version 1709 for 32-bit Systems and 10 more
KB4056893
Internet Explorer 11 on Windows 10 for 32-bit Systems, Internet Explorer 11 on Windows 10 for x64-based Systems, Microsoft .NET Framework 3.5 on Windows 10 for 32-bit Systems and 7 more
KB4056944
Windows Server 2008 for 32-bit Systems Service Pack 2, Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation), Windows Server 2008 for Itanium-Based Systems Service Pack 2 and 2 more

Vendor advisory

https://support.microsoft.com/help/4056891

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