Microsoft · Security update · April 11, 2017

KB4015551: April 2017 security update

KB4015551, released April 11, 2017, fixes 23 CVEs across 3 products. 3 of them are being exploited (CVE-2017-0199); 3 on CISA KEV. Patch Radar priority: Patch now.

Patch now3 on CISA KEVKnown ransomware use1 publicly disclosed

CVEs closed

5 rated Critical

Exploited

CVE-2017-0199

Exploitation more likely

Microsoft's assessment

Highest EPSS

0.9950

99th percentile

Priority of the 23 CVEs

Patch now 3
                                Urgent 5
                                High 4
                                Routine 11

Applies to

Product
Internet Explorer 10 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-2017-0199	Microsoft Office	Remote Code Execution	6.7	0.9950	KEVRansomwareExploited
Patch now	CVE-2017-0210	Internet Explorer	Elevation of Privilege	3.5	0.2233	KEVDisclosedExploited
Patch now	CVE-2016-0162	Internet Explorer	Information Disclosure	n/a	0.2193	KEVExploited
Urgent	CVE-2017-0211	Microsoft Windows	Elevation of Privilege	5.0	0.1409	More likely
Urgent	CVE-2017-0201	Microsoft Scripting Engine	Remote Code Execution	6.4	0.1388	N/A
Urgent	CVE-2017-0158	Microsoft Scripting Engine	Remote Code Execution	7.5	0.1279	More likely
Urgent	CVE-2017-0180	Windows Hyper-V	Remote Code Execution	7.6	0.0330	Exploitation Less Likely
Urgent	CVE-2017-0163	Windows Hyper-V	Remote Code Execution	7.6	0.0315	Exploitation Less Likely
High	CVE-2017-0166	Group Policy	Elevation of Privilege	8.1	0.0642	Exploitation Less Likely
High	CVE-2017-0168	Windows Hyper-V	Information Disclosure	7.7	0.0556	N/A
High	CVE-2017-0169	Windows Hyper-V	Information Disclosure	7.3	0.0156	Exploitation Unlikely
High	CVE-2017-0156	Microsoft Graphics Component	Elevation of Privilege	7.0	0.0114	Exploitation Unlikely
Routine	CVE-2017-0042	Windows DirectShow	Information Disclosure	3.7	0.2952	Exploitation Less Likely
Routine	CVE-2013-6629	Microsoft Graphics Component	Information Disclosure	4.7	0.0973	Exploitation Unlikely
Routine	CVE-2017-0192	Microsoft Graphics Component	Information Disclosure	4.4	0.0603	Exploitation Less Likely
Routine	CVE-2017-0185	Windows Hyper-V	Denial of Service	5.8	0.0567	Exploitation Unlikely
Routine	CVE-2017-0191	Microsoft Windows	Denial of Service	5.8	0.0473	Exploitation Unlikely
Routine	CVE-2017-0186	Windows Hyper-V	Denial of Service	5.8	0.0456	Exploitation Unlikely
Routine	CVE-2017-0182	Windows Hyper-V	Denial of Service	5.8	0.0441	Exploitation Unlikely
Routine	CVE-2017-0183	Windows Hyper-V	Denial of Service	5.8	0.0441	Exploitation Unlikely
Routine	CVE-2017-0058	Windows Kernel-Mode Drivers	Information Disclosure	4.7	0.0366	Exploitation Unlikely
Routine	CVE-2017-0188	Windows Kernel-Mode Drivers	Information Disclosure	4.4	0.0298	None reported
Routine	CVE-2017-0184	Windows Hyper-V	Denial of Service	5.4	0.0168	Exploitation Unlikely

Released the same day

KB2589382
Microsoft OneNote 2010 Service Pack 2 (32-bit editions), Microsoft OneNote 2010 Service Pack 2 (64-bit editions)
KB3101522
Microsoft Excel Web App 2010 Service Pack 2
KB3118388
Microsoft Outlook 2010 Service Pack 2 (32-bit editions), Microsoft Outlook 2010 Service Pack 2 (64-bit editions)
KB3127890
Microsoft Outlook 2007 Service Pack 3
KB3127895
Office Online Server
KB3172519
Microsoft Outlook 2013 Service Pack 1 (32-bit editions), Microsoft Outlook 2013 Service Pack 1 (64-bit editions)
KB3178664
Microsoft Outlook 2016 (32-bit edition), Microsoft Outlook 2016 (64-bit edition)
KB3178724
Excel Services on Microsoft SharePoint Server 2013 Service Pack 1
KB3178725
Microsoft Office Web Apps Server 2013 Service Pack 1
KB3191827
Microsoft Excel 2007 Service Pack 3
KB3191829
Microsoft OneNote 2007 Service Pack 3
KB3191830
Microsoft Office Compatibility Pack Service Pack 2

Vendor advisory

https://support.microsoft.com/help/4015551

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