# CVE-2001-1055: Denial of service in n/a

> Remote attackers can cause denial of service via CPU consumption by flooding the Windows network stack with malformed ARP packets.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:N/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Sep 2004
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-3xpc-4hfv-fv7x

## What is CVE-2001-1055?

CVE-2001-1055 is a medium-severity denial of service vulnerability in Microsoft Windows 98, published on 1 Sep 2004. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Microsoft Windows network stack allows remote attackers to cause a denial of service (CPU consumption) via a flood of malformed ARP request packets with random source IP and MAC addresses, as demonstrated by ARPNuke.

## Which versions are affected by CVE-2001-1055?

It affects 2 products.


Products: Microsoft Windows 98, Microsoft Windows 98se.

## How do I fix CVE-2001-1055?

No fix has been published for CVE-2001-1055 yet. Limit exposure of the affected software until one is available.

## Is CVE-2001-1055 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2001-1055 exists.

Public exploit code:

- Microsoft Windows 98 - ARP Denial of Service (exploitdb)

## Other vulnerabilities in Microsoft Windows 98

- [CVE-2006-2376](https://insights.sbomify.com/CVE-2006-2376/): Integer overflow in n/a (high 7.5)
- [CVE-2002-1183](https://insights.sbomify.com/CVE-2002-1183/): Microsoft Windows 98 and Windows NT 4.0 do not properly verify the Basic Constraints of digital certificates, allowing remote attackers to e (high 7.5)
- [CVE-2001-0876](https://insights.sbomify.com/CVE-2001-0876/): Memory corruption in n/a (high 7.5)
- [CVE-2001-0877](https://insights.sbomify.com/CVE-2001-0877/): Denial of service in n/a (medium 5.0)
- [CVE-2001-0721](https://insights.sbomify.com/CVE-2001-0721/): Denial of service in n/a (medium 5.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2001-1055 and fix it if it is affected.

What it is: CVE-2001-1055 is a medium-severity denial of service vulnerability in Microsoft Windows 98, published on 1 Sep 2004. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2001-1055 exists.

Affected product: Microsoft Windows 98. 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-2001-1055/ (Markdown: https://insights.sbomify.com/CVE-2001-1055/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2001-1055
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2001-1055
- OSV: https://osv.dev/vulnerability/CVE-2001-1055

---
From sbomify Insights: https://insights.sbomify.com/CVE-2001-1055/
Summaries are generated and may contain mistakes; the official description above is the record.