CVE-2017-11825

Office vulnerability

CVSS

7.8

EPSS

22.1%

EPSS pct

97th

Exploited

No known

Microsoft Office 2016 Click-to-Run (C2R) and Microsoft Office 2016 for Mac allow an attacker to use a specially crafted file to perform actions in the security context of the current user, due to how Microsoft Office handles files in memory, aka "Microsoft Office Remote Code Execution Vulnerability".

Affected vendor

Microsoft

Affected product

Office

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

2017-10-13

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 22.1% 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-2017-11825

Confirm whether Microsoft Office is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-11825.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-11825

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-11825 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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