# CVE-2021-22363: Denial of service in eCNS280 TD

> An attacker can cause service abnormalities on Huawei eCNS280_TD devices through improper resource management, leading to denial of service.

- **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:** 22 Jun 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-f4h5-fx46-qjxf

## What is CVE-2021-22363?

CVE-2021-22363 is a high-severity denial of service vulnerability in eCNS280_TD, published on 22 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

There is a resource management error vulnerability in eCNS280_TD V100R005C10SPC650. An attacker needs to perform specific operations to exploit the vulnerability on the affected device. Due to improper resource management of the function, the vulnerability can be exploited to cause service abnormal on affected devices.

Weakness: CWE-770 (Allocation of Resources Without Limits or Throttling)

## Which versions are affected by CVE-2021-22363?

It affects 1 product.


Products: Huawei Ecns280 Td Firmware.

## How do I fix CVE-2021-22363?

No fix has been published for CVE-2021-22363 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-22363 being exploited?

There is no known exploitation of CVE-2021-22363 in the wild and no public exploit code.

## Other vulnerabilities in eCNS280_TD

- [CVE-2021-22396](https://insights.sbomify.com/CVE-2021-22396/): Privilege escalation in eCNS280 TD;eSE620X vESS (high 7.8)
- [CVE-2021-40007](https://insights.sbomify.com/CVE-2021-40007/): Information disclosure in eCNS280 TD (medium 6.5)
- [CVE-2021-39995](https://insights.sbomify.com/CVE-2021-39995/): Denial of service in eCNS280 TD;eSE620X vESS (medium 6.5)
- [CVE-2021-37036](https://insights.sbomify.com/CVE-2021-37036/): Information disclosure in FusionCompute;eCNS280 TD (medium 5.5)
- [CVE-2021-22378](https://insights.sbomify.com/CVE-2021-22378/): Race condition in eCNS280 TD (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-22363 and fix it if it is affected.

What it is: CVE-2021-22363 is a high-severity denial of service vulnerability in eCNS280_TD, published on 22 Jun 2021. 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-2021-22363 in the wild and no public exploit code.

Affected product: eCNS280_TD. 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-2021-22363/ (Markdown: https://insights.sbomify.com/CVE-2021-22363/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-22363
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-22363
- OSV: https://osv.dev/vulnerability/CVE-2021-22363

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-22363/
Summaries are generated and may contain mistakes; the official description above is the record.