CVE-2017-11826 KEV
7.8
HIGH · CVSS 3.1 · EPSS 81.2% (pctl 100)
Patch first
On CISA KEV — known exploited in the wild, due 2022-03-24.
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.
Scoring
| CVSS | 7.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| EPSS | 81.16% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | yes — remediate by 2022-03-24 |
| Public exploit | none known |
| Published | 2017-10-13 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Microsoft Office Remote Code Execution Vulnerability |
|---|---|
| Added | 2022-03-03 |
| Due | 2022-03-24 |
| Vendor / product | Microsoft / Office |
| Ransomware use | none reported |
Affected (7)
| Vendor | Product |
|---|---|
| microsoft | office compatibility pack |
| microsoft | office online server |
| microsoft | office web apps server |
| microsoft | office word viewer |
| microsoft | sharepoint enterprise server |
| microsoft | sharepoint server |
| microsoft | word |
References
- http://www.securityfocus.com/bid/101219
- http://www.securitytracker.com/id/1039541
- 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://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/
- http://www.securityfocus.com/bid/101219
- http://www.securitytracker.com/id/1039541
- 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://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.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-11826
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