# CVE-2024-30621: Memory corruption in n/a

> A stack overflow in the Tenda AX1803 router allows attackers to execute arbitrary code or cause a denial of service via the serverName parameter.

- **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:** 2 Apr 2024
- **Updated:** 19 Aug 2024
- **Also known as:** GHSA-fhx3-jwgv-mpc2

## What is CVE-2024-30621?

CVE-2024-30621 is a medium-severity memory corruption vulnerability in Tenda Ax1803 Firmware, published on 2 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Tenda AX1803 v1.0.0.1 contains a stack overflow via the serverName parameter in the function fromAdvSetMacMtuWan.

Weakness: CWE-787 (Out-of-bounds Write), CWE-121 (Stack-based Buffer Overflow)

## Which versions are affected by CVE-2024-30621?

It affects 1 product.


Products: Tenda Ax1803 Firmware.

## How do I fix CVE-2024-30621?

No fix has been published for CVE-2024-30621 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-30621 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-30621 exists.

## Other vulnerabilities in Tenda Ax1803 Firmware

- [CVE-2024-30620](https://insights.sbomify.com/CVE-2024-30620/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-51952](https://insights.sbomify.com/CVE-2023-51952/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-51953](https://insights.sbomify.com/CVE-2023-51953/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-51954](https://insights.sbomify.com/CVE-2023-51954/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-51956](https://insights.sbomify.com/CVE-2023-51956/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-30621 and fix it if it is affected.

What it is: CVE-2024-30621 is a medium-severity memory corruption vulnerability in Tenda Ax1803 Firmware, published on 2 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-30621 exists.

Affected product: Tenda Ax1803 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-2024-30621/ (Markdown: https://insights.sbomify.com/CVE-2024-30621/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-30621
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-30621
- OSV: https://osv.dev/vulnerability/CVE-2024-30621

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-30621/
Summaries are generated and may contain mistakes; the official description above is the record.