# CVE-2004-0963: Memory corruption in n/a

> Remote attackers can execute arbitrary code or cause denial of service in Microsoft Word via malicious .doc files exploiting buffer overflows.

- **Severity:** Critical 10.0 (`AV:N/AC:L/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:** 20 Oct 2004
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-833j-h6cj-v3r8

## What is CVE-2004-0963?

CVE-2004-0963 is a critical memory corruption vulnerability in Microsoft Word, published on 20 Oct 2004. 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

Buffer overflow in Microsoft Word 2002 (10.6612.6714) SP3, and possibly other versions, allows remote attackers to cause a denial of service (application exception) and possibly execute arbitrary code in winword.exe via certain unexpected values in a .doc file, including (1) an offset that triggers an out-of-bounds memory access, (2) a certain value that causes a large memory copy as triggered by an integer conversion error, and other values.

## Which versions are affected by CVE-2004-0963?

It affects 1 product.


Products: Microsoft Word.

## How do I fix CVE-2004-0963?

No fix has been published for CVE-2004-0963 yet. Limit exposure of the affected software until one is available.

## Is CVE-2004-0963 being exploited?

There is no known exploitation of CVE-2004-0963 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Word

- [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)
- [CVE-2013-3856](https://insights.sbomify.com/CVE-2013-3856/): Memory corruption in n/a (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2004-0963 and fix it if it is affected.

What it is: CVE-2004-0963 is a critical memory corruption vulnerability in Microsoft Word, published on 20 Oct 2004. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2004-0963 in the wild and no public exploit code.

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-2004-0963/ (Markdown: https://insights.sbomify.com/CVE-2004-0963/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2004-0963
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2004-0963
- OSV: https://osv.dev/vulnerability/CVE-2004-0963

---
From sbomify Insights: https://insights.sbomify.com/CVE-2004-0963/
Summaries are generated and may contain mistakes; the official description above is the record.