# CVE-2024-28639: Memory corruption in n/a

> Remote attackers can execute arbitrary code and cause denial of service via a buffer overflow in the IP field of TOTOLink routers.

- **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:** 16 Mar 2024
- **Updated:** 26 Mar 2025
- **Also known as:** GHSA-985v-7jg3-m7g3

## What is CVE-2024-28639?

CVE-2024-28639 is a critical memory corruption vulnerability in Totolink X5000r Firmware, published on 16 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Buffer Overflow vulnerability in TOTOLink X5000R V9.1.0u.6118-B20201102 and A7000R V9.1.0u.6115-B20201022, allow remote attackers to execute arbitrary code and cause a denial of service (DoS) via the IP field.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2024-28639?

It affects 2 products.


Products: Totolink A7000r Firmware, Totolink X5000r Firmware.

## How do I fix CVE-2024-28639?

No fix has been published for CVE-2024-28639 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-28639 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-28639 exists.

## Other vulnerabilities in Totolink X5000r Firmware

- [CVE-2025-51452](https://insights.sbomify.com/CVE-2025-51452/): Auth bypass in n/a (critical 9.8)
- [CVE-2023-49417](https://insights.sbomify.com/CVE-2023-49417/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-49418](https://insights.sbomify.com/CVE-2023-49418/): Memory corruption in n/a (critical 9.8)
- [CVE-2022-32993](https://insights.sbomify.com/CVE-2022-32993/): Missing authorization in n/a (critical 9.8)
- [CVE-2023-36947](https://insights.sbomify.com/CVE-2023-36947/): Memory corruption in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-28639 and fix it if it is affected.

What it is: CVE-2024-28639 is a critical memory corruption vulnerability in Totolink X5000r Firmware, published on 16 Mar 2024. 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-2024-28639 exists.

Affected product: Totolink X5000r 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-2024-28639/ (Markdown: https://insights.sbomify.com/CVE-2024-28639/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-28639
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-28639
- OSV: https://osv.dev/vulnerability/CVE-2024-28639

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-28639/
Summaries are generated and may contain mistakes; the official description above is the record.