CVE-2016-3313Office Memory Corruption
Microsoft Office 2007 SP3, 2010 SP2, 2013 SP1, 2013 RT SP1, and 2016, Word 2016 for Mac, and Word Viewer allow remote attackers to execute arbitrary code via a crafted file, aka "Microsoft Office Memory Corruption Vulnerability."
Published Aug 9, 2016 · Updated Oct 15, 2026
Key Facts
Patch immediately- CVE-2016-3313 is a high-severity vulnerability (CVSS 7.8 v3) affecting Office (Microsoft), Word For Mac (Microsoft), Word Viewer (Microsoft).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 50% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v3
7.8
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
50%
Higher than 98.8% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
38/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Description
Microsoft Office 2007 SP3, 2010 SP2, 2013 SP1, 2013 RT SP1, and 2016, Word 2016 for Mac, and Word Viewer allow remote attackers to execute arbitrary code via a crafted file, aka "Microsoft Office Memory Corruption Vulnerability."
Affected Products
6 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| OfficeMicrosoft | 2007-sp3, 2010-sp2, 2013-sp1 | n/a |
| Word For MacMicrosoft | 2016 | n/a |
| Word ViewerMicrosoft | See advisory | n/a |
Timeline
Publicly disclosed
Aug 9, 2016
Last updated
Oct 15, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- exploitExploitDB-40224
- otherMS16-099
- other40224
- other92289
- other1036559
FAQ
Common Questions.
Microsoft Office 2007 SP3, 2010 SP2, 2013 SP1, 2013 RT SP1, and 2016, Word 2016 for Mac, and Word Viewer allow remote attackers to execute arbitrary code via a crafted file, aka "Microsoft Office Memory Corruption Vulnerability."
Affected: Office (Microsoft) versions 2007-sp3, 2010-sp2, 2013-sp1; Word For Mac (Microsoft) versions 2016; Word Viewer (Microsoft). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2016-3313 On Your Attack Surface?
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