Public proof of concept

CVE-2016-3357

A public proof of concept exists; no exploitation attested.

Published2016-09-14
WeaknessCWE-119

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Microsoft Office 2007 SP3, Office 2010 SP2, Office 2013 SP1, Office 2013 RT SP1, Office 2016, Word for Mac 2011, Word 2016 for Mac, Word Viewer, Word Automation Services on SharePoint Server 2010 SP2, SharePoint Server 2013 SP1, Excel Automation Services on SharePoint Server 2013 SP1, Word Automation Services on SharePoint Server 2013 SP1, Office Web Apps 2010 SP2, and Office Web Apps Server 2013 SP1 allow remote attackers to execute arbitrary code via a crafted document, aka "Microsoft Office Memory Corruption Vulnerability."

Timeline

dates in UTC

2016-09-1410:59CVE publishedNVD
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2016-3357?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2016-3357?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Microsoft office

Branch	Affected	Fixed in	Source
2007.x	= 2007	no fix published	NVD
2010.x	= 2010	no fix published	NVD
2013.x	= 2013	no fix published	NVD
2016.x	= 2016	no fix published	NVD

Microsoft sharepoint foundation

Branch	Affected	Fixed in	Source
2010.x	= 2010	no fix published	NVD
2013.x	= 2013	no fix published	NVD

Microsoft word for mac

Branch	Affected	Fixed in	Source
2011.x	= 2011	no fix published	NVD
2016.x	= 2016	no fix published	NVD

3 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: EDB-40406
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2026-10-15
OpenCVESSVC decisionnone—
NVDCVSS 3.07.8read 2026-10-23
NVDCVSS 2.09.3read 2026-10-23
NVDweakness (CWE)CWE-119read 2026-10-23
FIRST EPSSEPSS score54.8 %read 2026-10-23
Exploit-DBdetectionread 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2016-09-14
Last Modified: 2026-10-15
NVD status: Modified

Frequently asked questions

What is CVE-2016-3357?

Is CVE-2016-3357 actively exploited?

Active exploitation of CVE-2016-3357 has not been confirmed. Its EPSS score was 54.8% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2016-3357?

CVE-2016-3357 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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