CVE-2017-11826
Microsoft Office Remote Code Execution Vulnerability
- High 7.8
- Exploited: added to CISA KEV 3 Mar 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.
Key facts
- Published
- 13 Oct 2017
- Last changed
- 21 Oct 2025
- Assigned by
- microsoft
- KEV added
- 3 Mar 2022
- KEV fix due
- 24 Mar 2022
- EPSS
- 82.217% likely to be exploited in the next 30 days, higher than 99.665% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: no; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 7.8CVSS 3.1, Highfrom CISA (ADP container)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
What to do
- Apply updates per vendor instructions.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft Corporation | Microsoft Office |
|
Timeline
- 13 Oct 2017 Published
- 3 Mar 2022 CVE-2017-11826 added to CISA KEV
- 3 Mar 2022 Added to the CISA KEV catalogue