CVE-2016-3283

Word Viewer vulnerability

CVSS

7.8

EPSS

19.6%

EPSS pct

97th

Exploited

No known

Microsoft Word Viewer allows remote attackers to execute arbitrary code via a crafted Office document, aka "Microsoft Office Memory Corruption Vulnerability."

Affected vendor

Microsoft

Affected product

Word Viewer

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

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 confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 19.6% 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-2016-3283

Confirm whether Microsoft Word Viewer is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2016-3283.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2016-3283

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2016-3283 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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