Microsoft · Security update · December 11, 2018

KB4471323: December 2018 cumulative update for Windows 10 1507

KB4471323, released December 11, 2018, fixes 16 CVEs across 10 products. 2 of them are being exploited (CVE-2018-8639); 2 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

Patch now2 on CISA KEVKnown ransomware useUnsupported product

CVEs closed

4 rated Critical

Exploited

CVE-2018-8639

Exploitation more likely

Microsoft's assessment

Highest EPSS

0.6849

99th percentile

Priority of the 16 CVEs

Patch now 2
                                Urgent 13
                                High 0
                                Routine 1

Applies to

Product	Build after install
Internet Explorer 11 on Windows 10 for 32-bit Systems	10240.18063
Internet Explorer 11 on Windows 10 for x64-based Systems	10240.18063
Microsoft .NET Framework 3.5 on Windows 10 for 32-bit Systems	10240.18063
Microsoft .NET Framework 3.5 on Windows 10 for x64-based Systems	10240.18063
Microsoft .NET Framework 4.6.2 on Windows 10 for 32-bit Systems	10240.18063
Microsoft .NET Framework 4.6.2 on Windows 10 for x64-based Systems	10240.18063
Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems	10240.18063
Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems	10240.18063
Windows 10 for 32-bit Systems	10240.18063
Windows 10 for x64-based Systems	10240.18063

CVEs this fix closes

Priority	CVE	Component	Impact	CVSS	EPSS	Exploitation
Patch now	CVE-2018-8639	Microsoft Graphics Component	Information Disclosure	7.0	0.2235	KEVRansomwareExploited
Patch now	CVE-2018-8611	Windows Kernel	Elevation of Privilege	7.0	0.0420	KEVExploited
Urgent	CVE-2018-8631	Internet Explorer	Remote Code Execution	6.4	0.6849	More likely
Urgent	CVE-2018-8617	Microsoft Scripting Engine	Remote Code Execution	4.2	0.6248	More likely
Urgent	CVE-2018-8619	Internet Explorer	Remote Code Execution	6.4	0.4484	More likely
Urgent	CVE-2018-8625	Microsoft Scripting Engine	Remote Code Execution	6.4	0.4376	More likely
Urgent	CVE-2018-8629	Microsoft Scripting Engine	Remote Code Execution	4.2	0.2260	More likely
Urgent	CVE-2018-8540	.NET Framework	Remote Code Execution	n/a	0.2158	Exploitation Less Likely
Urgent	CVE-2018-8634	Windows Authentication Methods	Remote Code Execution	4.2	0.1536	More likely
Urgent	CVE-2018-8643	Microsoft Scripting Engine	Remote Code Execution	6.4	0.0991	More likely
Urgent	CVE-2018-8596	Microsoft Graphics Component	Information Disclosure	4.7	0.0707	More likely
Urgent	CVE-2018-8595	Microsoft Graphics Component	Information Disclosure	4.7	0.0692	More likely
Urgent	CVE-2018-8477	Windows Kernel	Information Disclosure	3.3	0.0180	More likely
Urgent	CVE-2018-8641	Windows Kernel-Mode Drivers	Elevation of Privilege	7.0	0.0112	More likely
Urgent	CVE-2018-8599	Visual Studio	Elevation of Privilege	7.0	0.0100	More likely
Routine	CVE-2018-8514	Microsoft Windows DNS	Information Disclosure	3.3	0.0189	Exploitation Less Likely

Released the same day

KB2597975
Microsoft PowerPoint Viewer
KB2965312
Microsoft Office Web Apps 2010 Service Pack 2
KB4011027
Microsoft Office Online Server, Office Online Server
KB4011207
Microsoft Office Compatibility Pack Service Pack 3
KB4092472
Microsoft SharePoint Server 2013 Service Pack 1
KB4461465
Microsoft SharePoint Server 2010 Service Pack 2
KB4461481
Microsoft PowerPoint 2013 RT Service Pack 1, Microsoft PowerPoint 2013 Service Pack 1 (32-bit editions), Microsoft PowerPoint 2013 Service Pack 1 (64-bit editions)
KB4461521
Microsoft PowerPoint 2010 Service Pack 2 (32-bit editions), Microsoft PowerPoint 2010 Service Pack 2 (64-bit editions)
KB4461532
Microsoft PowerPoint 2016 (32-bit edition), Microsoft PowerPoint 2016 (64-bit edition)
KB4461541
Microsoft SharePoint Enterprise Server 2016
KB4461542
Microsoft Excel 2016 (32-bit edition), Microsoft Excel 2016 (64-bit edition)
KB4461544
Microsoft Outlook 2016 (32-bit edition), Microsoft Outlook 2016 (64-bit edition)

Vendor advisory

https://support.microsoft.com/help/4471323

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