# CVE-2017-11826: Microsoft Office Remote Code Execution Vulnerability

> CVE-2017-11826: Microsoft Office Remote Code Execution Vulnerability. CVSS 7.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2017-11826
Last updated: 2025-10-21T23:55:31Z

- Published: 2017-10-13 13:00 UTC · Updated: 2025-10-21 23:55 UTC · Assigner: microsoft
- CVSS: 7.8 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS: 81.3%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-03-03, federal due date 2022-03-24, ransomware use: Unknown

## 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.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- Microsoft Corporation: Microsoft Office

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2017-11826)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2017-11826)
- [https://0patch.blogspot.com/2017/11/0patching-pretty-nasty-microsoft-word.html](https://0patch.blogspot.com/2017/11/0patching-pretty-nasty-microsoft-word.html)
- [https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11826](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11826)
- [https://securingtomorrow.mcafee.com/mcafee-labs/analyzing-microsoft-office-zero-day-exploit-cve-2017-11826-memory-corruption-vulnerability/](https://securingtomorrow.mcafee.com/mcafee-labs/analyzing-microsoft-office-zero-day-exploit-cve-2017-11826-memory-corruption-vulnerability/)
- [https://www.tarlogic.com/en/blog/exploiting-word-cve-2017-11826/](https://www.tarlogic.com/en/blog/exploiting-word-cve-2017-11826/)
- [http://www.securityfocus.com/bid/101219](http://www.securityfocus.com/bid/101219)
- [http://www.securitytracker.com/id/1039541](http://www.securitytracker.com/id/1039541)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2017-11826 · Markdown: https://rewindex.com/cve/CVE-2017-11826.md · JSON: https://rewindex.com/api/v1/cves/CVE-2017-11826 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:46:22.537Z