CVE-2017-11826 on CISA KEV

Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word Viewer, Word 2007, 2010, 2013 and 2016, Word Automation Services, and Office Online Server allow remote code execution when the software

01What CISA says about this vulnerability

Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word Viewer, Word 2007, 2010, 2013 and 2016, Word Automation Services, and Office Online Server allow remote code execution when the software fails to properly handle objects in memory.

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-1182…
• 0patch.blogspot.com — https://0patch.blogspot.com/2017/11/0patching-pretty-nasty-microsoft-word.html
• www.securityfocus.com — http://www.securityfocus.com/bid/101219
• www.tarlogic.com — https://www.tarlogic.com/en/blog/exploiting-word-cve-2017-11826/
• www.securitytracker.com — http://www.securitytracker.com/id/1039541
• securingtomorrow.mcafee.com — https://securingtomorrow.mcafee.com/mcafee-labs/analyzing-microsoft-office-zero-…

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
Microsoft Corporation	Microsoft Office	Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word Viewer, Word 2007, 2010, 2013 and 2016, Word Automation Services, Office Online Server.

06Detection

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