# CVE-2020-9201: Denial of service in NIP6800;Secospace USG6600;USG9500

> Attackers can cause service abnormalities in Huawei network devices by sending crafted DHCP messages that trigger an out-of-bounds read.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Dec 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-p7q8-r4h2-p9qq

## What is CVE-2020-9201?

CVE-2020-9201 is a medium-severity denial of service vulnerability in Huawei Nip6800 Firmware, published on 24 Dec 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

There is an out-of-bounds read vulnerability in some versions of NIP6800, Secospace USG6600 and USG9500. The software reads data past the end of the intended buffer when parsing DHCP messages including crafted parameter. Successful exploit could cause certain service abnormal.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2020-9201?

It affects 3 products.


Products: Huawei Nip6800 Firmware, Huawei Secospace Usg6600 Firmware, Huawei Usg9500 Firmware.

## How do I fix CVE-2020-9201?

No fix has been published for CVE-2020-9201 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-9201 being exploited?

There is no known exploitation of CVE-2020-9201 in the wild and no public exploit code.

## Other vulnerabilities in Huawei Nip6800 Firmware

- [CVE-2020-1860](https://insights.sbomify.com/CVE-2020-1860/): Auth bypass in NIP6800;Secospace USG6600;USG9500 (high 7.5)
- [CVE-2020-1873](https://insights.sbomify.com/CVE-2020-1873/): Denial of service in NIP6800;Secospace USG6600;USG9500 (high 7.5)
- [CVE-2020-1876](https://insights.sbomify.com/CVE-2020-1876/): Memory corruption in NIP6800;Secospace USG6600;USG9500 (high 7.5)
- [CVE-2020-1881](https://insights.sbomify.com/CVE-2020-1881/): Denial of service in NIP6800;Secospace USG6600;USG9500 (high 7.5)
- [CVE-2020-1815](https://insights.sbomify.com/CVE-2020-1815/): Denial of service in NIP6800 (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-9201 and fix it if it is affected.

What it is: CVE-2020-9201 is a medium-severity denial of service vulnerability in Huawei Nip6800 Firmware, published on 24 Dec 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-9201 in the wild and no public exploit code.

Affected product: Huawei Nip6800 Firmware. 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-2020-9201/ (Markdown: https://insights.sbomify.com/CVE-2020-9201/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-9201
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-9201
- OSV: https://osv.dev/vulnerability/CVE-2020-9201

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-9201/
Summaries are generated and may contain mistakes; the official description above is the record.