# CVE-2023-44021: Memory corruption in n/a

> A stack overflow in the Tenda AC10U router allows attackers to execute arbitrary code or cause a denial of service.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:** 27 Sep 2023
- **Updated:** 24 Sep 2024
- **Also known as:** GHSA-gwrw-m58w-gw67

## What is CVE-2023-44021?

CVE-2023-44021 is a critical memory corruption vulnerability in n/a, published on 27 Sep 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Tenda AC10U v1.0 US_AC10UV1.0RTL_V15.03.06.49_multi_TDE01 was discovered to contain a stack overflow via the formSetClientState function.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2023-44021?

It affects 1 product.


Products: Tendacn Ac10u Firmware.

## How do I fix CVE-2023-44021?

No fix has been published for CVE-2023-44021 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-44021 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-44021 exists.

## Other vulnerabilities in n/a

- [CVE-2023-44020](https://insights.sbomify.com/CVE-2023-44020/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-44022](https://insights.sbomify.com/CVE-2023-44022/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-44023](https://insights.sbomify.com/CVE-2023-44023/): Memory corruption in n/a (critical 9.8)
- [CVE-2021-45401](https://insights.sbomify.com/CVE-2021-45401/): Command injection in n/a (critical 9.8)
- [CVE-2020-22079](https://insights.sbomify.com/CVE-2020-22079/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-44021 and fix it if it is affected.

What it is: CVE-2023-44021 is a critical memory corruption vulnerability in n/a, published on 27 Sep 2023. 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-2023-44021 exists.

Affected product: n/a. 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-2023-44021/ (Markdown: https://insights.sbomify.com/CVE-2023-44021/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-44021
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-44021
- OSV: https://osv.dev/vulnerability/CVE-2023-44021

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-44021/
Summaries are generated and may contain mistakes; the official description above is the record.