Microsoft · Security update · April 21, 2017

KB3141538: April 2017 security update

KB3141538, released April 21, 2017, fixes 1 CVE across 2 products. One of them is being exploited (CVE-2017-0199); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

Patch now1 on CISA KEVKnown ransomware useUnsupported product

CVEs closed

1 rated Critical

Exploited

CVE-2017-0199

Exploitation more likely

Microsoft's assessment

Highest EPSS

0.9950

99th percentile

Applies to

Product
Microsoft Office 2010 Service Pack 2 (32-bit editions)
Microsoft Office 2010 Service Pack 2 (64-bit editions)

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

Released the same day

KB3141529
Microsoft Office 2007 Service Pack 3
KB3178703
Microsoft Office 2016 (32-bit edition), Microsoft Office 2016 (64-bit edition)
KB3178710
Microsoft Office 2013 RT Service Pack 1, Microsoft Office 2013 Service Pack 1 (32-bit editions), Microsoft Office 2013 Service Pack 1 (64-bit editions)
KB4014793
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 4 more

Vendor advisory

https://support.microsoft.com/help/3141538

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