# CVE-2015-2470: Integer overflow in n/a

> Remote attackers can execute arbitrary code by tricking users into opening a crafted document in Microsoft Office.

- **Severity:** Critical 9.3 (`AV:N/AC:M/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 15 Aug 2015
- **Updated:** 14 Oct 2026
- **Also known as:** GHSA-3f4m-q8gg-49vr

## What is CVE-2015-2470?

CVE-2015-2470 is a critical vulnerability in Microsoft Office, published on 15 Aug 2015. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Integer underflow in Microsoft Office 2007 SP3, Office 2010 SP2, Office 2013 SP1, Office 2013 RT SP1, Office for Mac 2011, and Word Viewer allows remote attackers to execute arbitrary code via a crafted document, aka "Microsoft Office Integer Underflow Vulnerability."

Weakness: CWE-189

## Which versions are affected by CVE-2015-2470?

It affects 3 products.


Products: Microsoft Office, Microsoft Word, Microsoft Word Viewer.

## How do I fix CVE-2015-2470?

No fix has been published for CVE-2015-2470 yet. Limit exposure of the affected software until one is available.

## Is CVE-2015-2470 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2015-2470 exists.

Public exploit code:

- Microsoft Office 2007 - MSPTLS Heap Index Integer Underflow (MS15-081) (exploitdb)

## Other vulnerabilities in Microsoft Office

- [CVE-2018-0798](https://insights.sbomify.com/CVE-2018-0798/): Microsoft Office Memory Corruption (high 8.8, exploited in the wild)
- [CVE-2015-1770](https://insights.sbomify.com/CVE-2015-1770/): Microsoft Office Uninitialized Memory Use (high 8.8, exploited in the wild)
- [CVE-2006-2492](https://insights.sbomify.com/CVE-2006-2492/): Microsoft Word Malformed Object Pointer (high 8.8, exploited in the wild)
- [CVE-2018-0802](https://insights.sbomify.com/CVE-2018-0802/): Microsoft Office Memory Corruption (high 7.8, exploited in the wild)
- [CVE-2017-11882](https://insights.sbomify.com/CVE-2017-11882/): Microsoft Office Memory Corruption (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-2470 and fix it if it is affected.

What it is: CVE-2015-2470 is a critical vulnerability in Microsoft Office, published on 15 Aug 2015. An attacker can exploit it over the internet without logging in, 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-2015-2470 exists.

Affected product: Microsoft Office. 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-2015-2470/ (Markdown: https://insights.sbomify.com/CVE-2015-2470/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-2470
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-2470
- OSV: https://osv.dev/vulnerability/CVE-2015-2470

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-2470/
Summaries are generated and may contain mistakes; the official description above is the record.