# CVE-2007-2228: Null dereference in n/a

> Remote attackers can cause a denial of service or information leak in Windows via a malformed RPC request with a zero-valued signature.

- **Severity:** High 7.8 (`AV:N/AC:L/Au:N/C:N/I:N/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Oct 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-9w4q-9546-j7r2

## What is CVE-2007-2228?

CVE-2007-2228 is a high-severity vulnerability in Microsoft Windows 2000, published on 9 Oct 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

rpcrt4.dll (aka the RPC runtime library) in Microsoft Windows XP SP2, XP Professional x64 Edition, Server 2003 SP1 and SP2, Server 2003 x64 Edition and x64 Edition SP2, and Vista and Vista x64 Edition allows remote attackers to cause a denial of service (RPCSS service stop and system restart) via an RPC request that uses NTLMSSP PACKET authentication with a zero-valued verification trailer signature, which triggers an invalid dereference.  NOTE: this also affects Windows 2000 SP4, although the impact is an information leak.

## Which versions are affected by CVE-2007-2228?

It affects 4 products.


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

## How do I fix CVE-2007-2228?

No fix has been published for CVE-2007-2228 yet. Limit exposure of the affected software until one is available.

## Is CVE-2007-2228 being exploited?

There is no known exploitation of CVE-2007-2228 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-2007-2228 and fix it if it is affected.

What it is: CVE-2007-2228 is a high-severity vulnerability in Microsoft Windows 2000, published on 9 Oct 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2007-2228 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-2007-2228/ (Markdown: https://insights.sbomify.com/CVE-2007-2228/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-2228
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-2228
- OSV: https://osv.dev/vulnerability/CVE-2007-2228

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-2228/
Summaries are generated and may contain mistakes; the official description above is the record.