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TI-2017-08774 Aliases CVE-2017-11826GHSA-4qcg-gx82-4h36

Memory corruption in Microsoft Office

Priority CRITICAL 93Exploited in the wildCWE-119Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Active In CISA KEV since 2022-03-03CISA due date 2022-03-24
EPSS 0.82217 99th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft OfficeMicrosoft 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.—No fix listedCNA
  • Microsoft Office VendorMicrosoft Affected 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. Fixed in — No fix listed CNA

CPE configurations NVD · 13

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:office_compatibility_pack:-:sp3:*:*:*:*:*:*not specified by NVDVulnerableMicrosoft
cpe:2.3:a:microsoft:office_online_server:2016:*:*:*:*:*:*:*2016VulnerableMicrosoft
cpe:2.3:a:microsoft:office_web_apps_server:2010:sp2:*:*:*:*:*:*2010 sp2VulnerableMicrosoft
cpe:2.3:a:microsoft:office_web_apps_server:2013:sp1:*:*:*:*:*:*2013 sp1VulnerableMicrosoft
cpe:2.3:a:microsoft:office_word_viewer:-:*:*:*:*:*:*:*not specified by NVDVulnerableMicrosoft
cpe:2.3:a:microsoft:sharepoint_enterprise_server:2016:*:*:*:*:*:*:*2016VulnerableMicrosoft
cpe:2.3:a:microsoft:sharepoint_server:2010:sp2:*:*:*:*:*:*2010 sp2VulnerableMicrosoft
cpe:2.3:a:microsoft:sharepoint_server:2013:sp1:*:*:*:*:*:*2013 sp1VulnerableMicrosoft
cpe:2.3:a:microsoft:word:2007:sp3:*:*:*:*:*:*2007 sp3VulnerableMicrosoft
cpe:2.3:a:microsoft:word:2010:sp2:*:*:*:*:*:*2010 sp2VulnerableMicrosoft
  • cpe:2.3:a:microsoft:office_compatibility_pack:-:sp3:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office_online_server:2016:*:*:*:*:*:*:* Versions 2016 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office_web_apps_server:2010:sp2:*:*:*:*:*:* Versions 2010 sp2 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office_web_apps_server:2013:sp1:*:*:*:*:*:* Versions 2013 sp1 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office_word_viewer:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:sharepoint_enterprise_server:2016:*:*:*:*:*:*:* Versions 2016 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:sharepoint_server:2010:sp2:*:*:*:*:*:* Versions 2010 sp2 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:sharepoint_server:2013:sp1:*:*:*:*:*:* Versions 2013 sp1 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:word:2007:sp3:*:*:*:*:*:* Versions 2007 sp3 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:word:2010:sp2:*:*:*:*:*:* Versions 2010 sp2 Vulnerable ·Microsoft
Show 3 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:microsoft:word:2013:sp1:*:*:-:*:*:*2013 sp1VulnerableMicrosoft
cpe:2.3:a:microsoft:word:2013:sp1:*:*:rt:*:*:*2013 sp1VulnerableMicrosoft
cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:*:*2016VulnerableMicrosoft
  • cpe:2.3:a:microsoft:word:2013:sp1:*:*:-:*:*:* Versions 2013 sp1 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:word:2013:sp1:*:*:rt:*:*:* Versions 2013 sp1 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:*:* Versions 2016 Vulnerable ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2022-03-03 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2017-11826
  3. 2026-10-03 Alias added: GHSA-4qcg-gx82-4h36

References

Exploit 2

Patch 1

Advisory 1

  • TI-2018-00739 Out-of-bounds write in Microsoft Equation Editor KEVCVSS 3.1HIGH 8.8
  • TI-2015-02130 Microsoft PowerPoint 2007 SP3, Word 2007 SP3, PowerPoint 2010 SP2, Word 2010 SP2… KEVCVSS 3.1HIGH 8.8
  • TI-2009-00222 Microsoft Office Excel 2000 SP3, 2002 SP3, 2003 SP3, and 2007 SP1; Excel Viewer 2003 Gold… KEVCVSS 3.1HIGH 8.8
  • TI-2018-00743 Out-of-bounds write in Microsoft Equation Editor KEVCVSS 3.1HIGH 7.8
  • TI-2016-06250 Microsoft Excel 2007 SP3, Excel 2010 SP2, Excel 2013 SP1, Excel 2013 RT SP1, Excel 2016… KEVCVSS 3.1HIGH 7.8
  • TI-2016-06184 Microsoft Word 2007 SP2, Office 2010 SP2, Word 2013 SP1, Word 2013 RT SP1, Word 2016… KEVCVSS 3.1HIGH 7.8
See all 205 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences