# CVE-2003-0111: Security feature bypass in n/a

> Remote attackers can bypass security checks and execute arbitrary code via malicious Java applets in Microsoft Virtual Machine.

- **Severity:** High 7.5 (`AV:N/AC:L/Au:N/C:P/I:P/A:P`)
- **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 Apr 2003
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-83gw-hr2p-gg57

## What is CVE-2003-0111?

CVE-2003-0111 is a high-severity vulnerability in Microsoft Windows 2000, published on 15 Apr 2003. 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

The ByteCode Verifier component of Microsoft Virtual Machine (VM) build 5.0.3809 and earlier, as used in Windows and Internet Explorer, allows remote attackers to bypass security checks and execute arbitrary code via a malicious Java applet, aka "Flaw in Microsoft VM Could Enable System Compromise."

## Which versions are affected by CVE-2003-0111?

It affects 3 products.


Products: Microsoft Virtual Machine, Microsoft Windows 2000, Microsoft Windows 2000 Terminal Services.

## How do I fix CVE-2003-0111?

No fix has been published for CVE-2003-0111 yet. Limit exposure of the affected software until one is available.

## Is CVE-2003-0111 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2003-0111 exists.

Public exploit code:

- Microsoft Java Virtual Machine 3802 Series - Bytecode Verifier (exploitdb)

## Other vulnerabilities in Microsoft Windows 2000

- [CVE-2000-0327](https://insights.sbomify.com/CVE-2000-0327/): Code injection in n/a (high 7.6)
- [CVE-2002-0865](https://insights.sbomify.com/CVE-2002-0865/): Code injection in n/a (high 7.5)
- [CVE-2002-0866](https://insights.sbomify.com/CVE-2002-0866/): Code injection in n/a (high 7.5)
- [CVE-2002-0979](https://insights.sbomify.com/CVE-2002-0979/): Path traversal in n/a (high 7.5)
- [CVE-2000-0711](https://insights.sbomify.com/CVE-2000-0711/): Security feature bypass in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2003-0111 and fix it if it is affected.

What it is: CVE-2003-0111 is a high-severity vulnerability in Microsoft Windows 2000, published on 15 Apr 2003. 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-2003-0111 exists.

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-2003-0111/ (Markdown: https://insights.sbomify.com/CVE-2003-0111/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2003-0111
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2003-0111
- OSV: https://osv.dev/vulnerability/CVE-2003-0111

---
From sbomify Insights: https://insights.sbomify.com/CVE-2003-0111/
Summaries are generated and may contain mistakes; the official description above is the record.