CVE-2017-8742

Office Compatibility Pack vulnerability

CVSS

7.8

EPSS

20.1%

EPSS pct

97th

Exploited

No known

A remote code execution vulnerability exists in Microsoft PowerPoint 2007 Service Pack 3, Microsoft PowerPoint 2010 Service Pack 2, Microsoft PowerPoint 2013 Service Pack 1, Microsoft PowerPoint 2013 RT Service Pack 1, Microsoft PowerPoint 2016, Microsoft PowerPoint Viewer 2007, Microsoft SharePoint Server 2013 Service Pack 1, Microsoft SharePoint Enterprise Server 2016, Microsoft Office Web Apps 2010 Service Pack 2, and Microsoft Office Compatibility Pack Service Pack 3 when they fail to properly handle objects in memory, aka "PowerPoint Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-8743.

Affected vendor

Microsoft

Affected product

Office Compatibility Pack

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 20.1% 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-2017-8742

Confirm whether Microsoft Office Compatibility Pack is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-8742.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-8742

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-8742 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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