Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2017-11826

CVE-2017-11826HIGH

Microsoft Office

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   N   R  U  H  H  H    7.8   .8116   99.6   YES

AFFECTED
  Product           Versions                                                                                                                                                                                                                                  Fixed
  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. –  —

TIMELINE
  Jul 31  Reserved by microsoft
  Oct 13  Published (CNA: microsoft)
  Mar 3   Added to CISA KEV, remediation due 2022-03-24

CWE-119 · CNA: microsoft · CVSS v3.1 · 7 references · KEV due March 24, 2022

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
July 31, 2017	Reserved	Reserved by microsoft
October 13, 2017	Published	Published (CNA: microsoft)
March 3, 2022	KEV ADDED	Added to CISA KEV, remediation due 2022-03-24

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
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.	—

Weaknesses

CWE-119

References (7)

http://www.securityfocus.com/bid/101219 [vdb-entry, x_refsource_BID]
http://www.securitytracker.com/id/1039541 [vdb-entry, x_refsource_SECTRACK]
https://0patch.blogspot.com/2017/11/0patching-pretty-nasty-microsoft-word.html [x_refsource_MISC]
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11826 [x_refsource_CONFIRM]
https://securingtomorrow.mcafee.com/mcafee-labs/analyzing-microsoft-office-zero-day-exploit-cve-2017-11826-memory-corruption-vulnerability/ [x_refsource_MISC]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-11826 [government-resource]
https://www.tarlogic.com/en/blog/exploiting-word-cve-2017-11826/ [x_refsource_MISC]

Authoritative record: CVE-2017-11826 at cve.org

Vendors: microsoft

Weaknesses: CWE-119

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2017-11826 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.