# CVE-2016-3316: Memory corruption in n/a

> Remote attackers can execute arbitrary code by tricking users into opening a crafted Microsoft Word file.

- **Severity:** High 7.8 (`CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 9 Aug 2016
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-862r-gj4m-5gp9

## What is CVE-2016-3316?

CVE-2016-3316 is a high-severity memory corruption vulnerability in Microsoft Word, published on 9 Aug 2016. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Microsoft Word 2013 SP1, 2013 RT SP1, 2016, and 2016 for Mac allow remote attackers to execute arbitrary code via a crafted file, aka "Microsoft Office Memory Corruption Vulnerability."

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2016-3316?

It affects 2 products.


Products: Microsoft Word, Microsoft Word for Mac.

## How do I fix CVE-2016-3316?

No fix has been published for CVE-2016-3316 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-3316 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-3316 exists.

Public exploit code:

- Microsoft Word 2013/2016 - sprmSdyaTop Denial of Service (MS16-099) (exploitdb)

## Other vulnerabilities in Microsoft Word

- [CVE-2004-0963](https://insights.sbomify.com/CVE-2004-0963/): Memory corruption in n/a (critical 10.0)
- [CVE-2015-0065](https://insights.sbomify.com/CVE-2015-0065/): Memory corruption in n/a (critical 9.3)
- [CVE-2014-1758](https://insights.sbomify.com/CVE-2014-1758/): Memory corruption in n/a (critical 9.3)
- [CVE-2013-3891](https://insights.sbomify.com/CVE-2013-3891/): Memory corruption in n/a (critical 9.3)
- [CVE-2013-3892](https://insights.sbomify.com/CVE-2013-3892/): Memory corruption in n/a (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-3316 and fix it if it is affected.

What it is: CVE-2016-3316 is a high-severity memory corruption vulnerability in Microsoft Word, published on 9 Aug 2016. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-3316 exists.

Affected product: Microsoft Word. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2016-3316/ (Markdown: https://insights.sbomify.com/CVE-2016-3316/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-3316
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-3316
- OSV: https://osv.dev/vulnerability/CVE-2016-3316

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From sbomify Insights: https://insights.sbomify.com/CVE-2016-3316/
Summaries are generated and may contain mistakes; the official description above is the record.