# CVE-2023-45984: Memory corruption in n/a

> A stack overflow in TOTOLINK routers allows attackers to execute arbitrary code or cause denial of service via the lang parameter.

- **Severity:** High 8.8 (`CVSS:3.1/AV:A/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:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Oct 2023
- **Updated:** 12 Sep 2024
- **Also known as:** GHSA-7xp8-vhxc-29v9

## What is CVE-2023-45984?

CVE-2023-45984 is a high-severity memory corruption vulnerability in Totolink X5000r Firmware, published on 16 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

TOTOLINK X5000R V9.1.0u.6118_B20201102 and TOTOLINK A7000R V9.1.0u.6115_B20201022 was discovered to contain a stack overflow via the lang parameter in the function setLanguageCfg.

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

## Which versions are affected by CVE-2023-45984?

It affects 2 products.


Products: Totolink A7000r Firmware, Totolink X5000r Firmware.

## How do I fix CVE-2023-45984?

No fix has been published for CVE-2023-45984 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-45984 being exploited?

There is no known exploitation of CVE-2023-45984 in the wild and no public exploit code.

## 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-2024-28639](https://insights.sbomify.com/CVE-2024-28639/): Memory corruption 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)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-45984 and fix it if it is affected.

What it is: CVE-2023-45984 is a high-severity memory corruption vulnerability in Totolink X5000r Firmware, published on 16 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-45984 in the wild and no public exploit code.

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-2023-45984/ (Markdown: https://insights.sbomify.com/CVE-2023-45984/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-45984
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-45984
- OSV: https://osv.dev/vulnerability/CVE-2023-45984

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-45984/
Summaries are generated and may contain mistakes; the official description above is the record.