CVE-2017-8631

highpriority · track · 37EPSS 0.170 · 97 %ileEURUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

17.0% (97th) EPSS

CVSS 9.3 · high

Is it mine?

22 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

A remote code execution vulnerability exists in Excel Services, Microsoft Excel 2007 Service Pack 3, Microsoft Excel 2010 Service Pack 2, Microsoft Excel 2013 Service Pack 1, Microsoft Excel 2013 RT Service Pack 1, Microsoft Excel 2016, Microsoft Office Web Apps 2013, Microsoft Office Compatibility Pack Service Pack 3, Microsoft Excel Web App 2013 Service Pack 1, Microsoft Excel Viewer 2007 Service Pack 3, and Office Online Server when they fail to properly handle objects in memory, aka "Microsoft Office Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-8630, CVE-2017-8632, and CVE-2017-8744.

cvss

Technical severity, 0–10. One row per scoring source.

9.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.09.3highAV:N/AC:M/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8.6 · impact 10

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.17.8highAV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-119US

affected products (22)

Products and version ranges known to be affected.

Microsoft Corporation Microsoft Office≤ Excel Services, Microsoft Excel 2007 Service Pack 3, Microsoft Excel 2010 Service Pack 2, Microsoft Excel 2013 Service Pack 1, Microsoft Excel 2013 RT Service Pack 1 Microsoft Excel 2016, Microsoft Office Web Apps 2013, Microsoft Office Compatibility Pack Service Pack 3, Microsoft Excel Web App 2013 Service Pack 1, Microsoft Excel Viewer 2007 Service Pack 3, and Office Online Serverenisa_euvdEU
Microsoft Corp Microsoft Excel 2007 Service Pack 3all versionsfstec_bduRU
Microsoft Corp Microsoft Excel 2010 Service Pack 2all versionsfstec_bduRU
Microsoft Corp Microsoft Excel 2011all versionsfstec_bduRU
Microsoft Corp Microsoft Excel 2013 RT Service Pack 1all versionsfstec_bduRU
Microsoft Corp Microsoft Excel 2013 Service Pack 1all versionsfstec_bduRU
Microsoft Corp Microsoft Excel 2016all versionsfstec_bduRU
Microsoft Corp Microsoft Excel Viewer 2007 Service Pack 3all versionsfstec_bduRU
Microsoft Corp Microsoft Office Compatibility Pack Service Pack 3all versionsfstec_bduRU
Microsoft Corp Microsoft Office Web Apps 2013 Service Pack 1all versionsfstec_bduRU
Microsoft Corp Microsoft SharePoint Server≤ 2007 SP3fstec_bduRU
Microsoft Corp Microsoft SharePoint Server≤ 2010 SP2fstec_bduRU
Microsoft Corp Office Online Serverall versionsfstec_bduRU
microsoft excel= 2007nvdUScpe:2.3:a:microsoft:excel:*:*:*:*:*:*:*:*
microsoft excel= 2010nvdUScpe:2.3:a:microsoft:excel:*:*:*:*:*:*:*:*
microsoft excel= 2013nvdUScpe:2.3:a:microsoft:excel:*:*:*:*:*:*:*:*
microsoft excel= 2016nvdUScpe:2.3:a:microsoft:excel:*:*:*:*:*:*:*:*
microsoft excel viewer= 2007nvdUScpe:2.3:a:microsoft:excel_viewer:*:*:*:*:*:*:*:*
microsoft excel web app= 2013nvdUScpe:2.3:a:microsoft:excel_web_app:*:*:*:*:*:*:*:*
microsoft office compatibility packall versionsnvdUScpe:2.3:a:microsoft:office_compatibility_pack:*:*:*:*:*:*:*:*

showing 20 of 22

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2017-09-13modified 2026-06-17

references (9)

External citations — patches, advisories, analysis.

scry

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