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Fencer Vulns
high 7.8

CVE-2017-8631 in the critical feed json

A remote code execution vulnerability exists in Excel Services, Microsoft Excel 2007 Service Pack 3, Microsoft Excel 2010 Service Pack 2, M…

published 2017-09-13 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-17580

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
17.0%
EPSS 17.0% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

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.

Patch / fix

Exploit prediction

16.99% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

  • Microsoft Corporation Microsoft Office

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.