THREATPORT/VULNERABILITY/CVE-2017-8632
HIGH SEVERITY

CVE-2017-8632

Excel vulnerability

CVSS
7.8
EPSS
17.0%
EPSS pct
97th
Exploited
No known
A remote code execution vulnerability exists in 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 Excel for Mac 2011, Microsoft Excel 2016 for Mac, and Microsoft Office Compatibility Pack Service Pack 3, 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-2017-8631, and CVE-2017-8744.
Affected vendor
Microsoft
Affected product
Excel
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-119 — Improper Restriction of Operations within Memory Bounds
Published
2017-09-13

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 17.0% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2017-8632

  • Confirm whether Microsoft Excel is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2017-8632.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-8632

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