CVE-2017-11826
HIGH severity · CVSS 7.8 · Memory corruption · actively exploited (CISA KEV)
7.8CVSS HIGH ● exploited
🔴 Actively exploited in the wild (CISA Known Exploited Vulnerabilities).
Added to KEV 2022-03-03. US federal agencies must patch by 2022-03-24.
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionRequired
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)92%
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
This vulnerability is being actively exploited in the wild — patch affected products urgently. Open any affected product above for its exact safe version.
Official patch: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11826 ↗
Additional information
- NVD record
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11826Patch
- http://www.securityfocus.com/bid/101219Advisory
- http://www.securitytracker.com/id/1039541Advisory
- https://securingtomorrow.mcafee.com/mcafee-labs/analyzing-microsoft-office-zero-day-exploit-cve-2017-11826-memory-corruption-vulnerability/Advisory
- http://www.securityfocus.com/bid/101219Advisory
- http://www.securitytracker.com/id/1039541Advisory
- https://0patch.blogspot.com/2017/11/0patching-pretty-nasty-microsoft-word.htmlExploit
- https://www.tarlogic.com/en/blog/exploiting-word-cve-2017-11826/Advisory