THREATPORT/VULNERABILITY/CVE-2016-3279
MEDIUM SEVERITY

CVE-2016-3279

Excel vulnerability

CVSS
5.5
EPSS
16.4%
EPSS pct
97th
Exploited
No known
Microsoft Office 2010 SP2, Excel 2010 SP2, PowerPoint 2010 SP2, Word 2010 SP2, Excel 2013 SP1, PowerPoint 2013 SP1, Word 2013 SP1, Excel 2013 RT SP1, PowerPoint 2013 RT SP1, Word 2013 RT SP1, Excel 2016, Word 2016, Word Automation Services on SharePoint Server 2010 SP2, and Office Web Apps 2010 SP2 allow remote attackers to execute arbitrary code via a crafted XLA file, aka "Microsoft Office Remote Code Execution Vulnerability."
Affected vendor
Microsoft
Affected product
Excel
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Weakness type (CWE)
Published
2016-07-13

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 integrity.

Its EPSS score of 16.4% 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-2016-3279

  • Confirm whether Microsoft Excel is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2016-3279.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2016-3279

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2016-3279 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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