# CVE-2004-1361: Integer overflow in n/a

> Remote attackers can execute arbitrary code by tricking users into opening a malformed .hlp file, exploiting an integer underflow in the Windows Help Viewer.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:P/A:N`)
- **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:** 19 Jan 2005
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-5pqc-wjgq-r2x7

## What is CVE-2004-1361?

CVE-2004-1361 is a medium-severity vulnerability in Microsoft Windows 2000, published on 19 Jan 2005. 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 winhlp32.exe in Windows NT, Windows 2000 through SP4, Windows XP through SP2, and Windows 2003 allows remote attackers to execute arbitrary code via a malformed .hlp file, which leads to a heap-based buffer overflow.

## Which versions are affected by CVE-2004-1361?

It affects 4 products.


Products: Microsoft Windows 2000, Microsoft Windows 2003 Server, Microsoft Windows Nt, Microsoft Windows Xp.

## How do I fix CVE-2004-1361?

No fix has been published for CVE-2004-1361 yet. Limit exposure of the affected software until one is available.

## Is CVE-2004-1361 being exploited?

There is no known exploitation of CVE-2004-1361 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Windows 2000

- [CVE-2008-4250](https://insights.sbomify.com/CVE-2008-4250/): Microsoft Windows Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2010-0232](https://insights.sbomify.com/CVE-2010-0232/): Microsoft Windows Kernel Exception Handler (high 7.8, exploited in the wild)
- [CVE-2009-1123](https://insights.sbomify.com/CVE-2009-1123/): Microsoft Windows Improper Input Validation (high 7.8, exploited in the wild)
- [CVE-2002-0367](https://insights.sbomify.com/CVE-2002-0367/): Microsoft Windows Privilege Escalation (high 7.8, exploited in the wild)
- [CVE-2010-0269](https://insights.sbomify.com/CVE-2010-0269/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2004-1361 and fix it if it is affected.

What it is: CVE-2004-1361 is a medium-severity vulnerability in Microsoft Windows 2000, published on 19 Jan 2005. 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-2004-1361 in the wild and no public exploit code.

Affected product: Microsoft Windows 2000. 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-2004-1361/ (Markdown: https://insights.sbomify.com/CVE-2004-1361/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2004-1361
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2004-1361
- OSV: https://osv.dev/vulnerability/CVE-2004-1361

---
From sbomify Insights: https://insights.sbomify.com/CVE-2004-1361/
Summaries are generated and may contain mistakes; the official description above is the record.