# CVE-2020-1870: Denial of service in CloudEngine 12800

> Attackers can cause a denial of service on Huawei network devices through improper memory management leading to memory leakage.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/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:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 May 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-v2q9-m664-5f32

## What is CVE-2020-1870?

CVE-2020-1870 is a high-severity denial of service vulnerability in Huawei CloudEngine 12800, published on 29 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

There is a denial of service vulnerability in some Huawei products. Due to improper memory management, memory leakage may occur in some special cases. Attackers can perform a series of operations to exploit this vulnerability. Successful exploit may cause a denial of service. Affected product versions include: CloudEngine 12800 versions V200R019C00SPC800; CloudEngine 5800 versions V200R019C00SPC800; CloudEngine 6800 versions V200R005C20SPC800, V200R019C00SPC800; CloudEngine 7800 versions V200R019C00SPC800; NE40E versions V800R011C00SPC200, V800R011C00SPC300, V800R011C10SPC100; NE40E-F versions V800R011C00SPC200, V800R011C10SPC100; NE40E-M versions V800R011C00SPC200, V800R011C10SPC100.

Weakness: CWE-772 (Missing Release of Resource after Effective Lifetime)

## Which versions are affected by CVE-2020-1870?

It affects 2 products.


Products: Huawei Cloudengine 12800 Firmware, Huawei Cloudengine 6800 Firmware.

## How do I fix CVE-2020-1870?

No fix has been published for CVE-2020-1870 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-1870 being exploited?

There is no known exploitation of CVE-2020-1870 in the wild and no public exploit code.

## Other vulnerabilities in Huawei CloudEngine 12800

- [CVE-2016-6178](https://insights.sbomify.com/CVE-2016-6178/): Other in n/a (critical 9.8)
- [CVE-2020-9207](https://insights.sbomify.com/CVE-2020-9207/): Auth bypass in CloudEngine 12800 (high 7.8)
- [CVE-2021-40008](https://insights.sbomify.com/CVE-2021-40008/): Denial of service in CloudEngine 12800;CloudEngine 5800;CloudEngine 6800;CloudEngine 7800 (high 7.5)
- [CVE-2021-22328](https://insights.sbomify.com/CVE-2021-22328/): Denial of service in CloudEngine 12800;CloudEngine 5800;CloudEngine 6800;CloudEngine 7800 (high 7.5)
- [CVE-2021-22332](https://insights.sbomify.com/CVE-2021-22332/): Use after free in CloudEngine 12800;CloudEngine 5800;CloudEngine 6800;CloudEngine 7800 (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-1870 and fix it if it is affected.

What it is: CVE-2020-1870 is a high-severity denial of service vulnerability in Huawei CloudEngine 12800, published on 29 May 2020. 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-2020-1870 in the wild and no public exploit code.

Affected product: Huawei CloudEngine 12800. 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-2020-1870/ (Markdown: https://insights.sbomify.com/CVE-2020-1870/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-1870
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-1870
- OSV: https://osv.dev/vulnerability/CVE-2020-1870

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-1870/
Summaries are generated and may contain mistakes; the official description above is the record.