High severity · published Oct 13, 2017
CVE-2017-11826
Microsoft Office Remote Code Execution Vulnerability
In wildKEV
7.8
CVSS
81.3%
EPSS
Yes
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)81.3% · higher than 100% of CVEs
Exploited in the wildYes
CISA KEVListed Mar 3, 2022
Federal remediation dueMar 24, 2022
Ransomware campaign useNot known
Affected products
Which versions
OF
Office · Microsoft
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. · source: vendor, KEV
SH
SharePoint · Microsoft
2010; 2013 · source: NVD
OC
Office Compatibility Pack · Microsoft
All versions, or not specified · source: NVD
OO
Office Online Server · Microsoft
2016 · source: NVD
OW
Office Web Apps Server · Microsoft
2010; 2013 · source: NVD
OW
Office Word Viewer · Microsoft
All versions, or not specified · source: NVD
SE
Sharepoint Enterprise Server · Microsoft
2016 · source: NVD
WO
Word · Microsoft
2007; 2010; 2013; 2013; 2016 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-11826
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-11826
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
x_refsource_CONFIRM
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11826
x_refsource_MISC
https://0patch.blogspot.com/2017/11/0patching-pretty-nasty-microsoft-word.html
vdb-entry
http://www.securityfocus.com/bid/101219
x_refsource_MISC
https://www.tarlogic.com/en/blog/exploiting-word-cve-2017-11826/
vdb-entry
http://www.securitytracker.com/id/1039541
x_refsource_MISC
https://securingtomorrow.mcafee.com/mcafee-labs/analyzing-microsoft-office-zero-day-exploit-cve-2017-11826-memory-corruption-vulnerability/
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