# CVE-2023-45985: Memory corruption in n/a

> Attackers can cause a Denial of Service on TOTOLINK routers via a crafted POST request exploiting a stack overflow in parental control settings.

- **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:** 16 Oct 2023
- **Updated:** 30 Oct 2024
- **Also known as:** GHSA-5cgm-4jc2-42h7

## What is CVE-2023-45985?

CVE-2023-45985 is a high-severity memory corruption vulnerability in Totolink X5000r Firmware, published on 16 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

TOTOLINK X5000R V9.1.0u.6118_B20201102 and TOTOLINK A7000R V9.1.0u.6115_B20201022 were discovered to contain a stack overflow in the function setParentalRules. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted POST request.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2023-45985?

It affects 2 products.


Products: Totolink A7000r Firmware, Totolink X5000r Firmware.

## How do I fix CVE-2023-45985?

No fix has been published for CVE-2023-45985 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-45985 being exploited?

There is no known exploitation of CVE-2023-45985 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-2023-45985 and fix it if it is affected.

What it is: CVE-2023-45985 is a high-severity memory corruption vulnerability in Totolink X5000r Firmware, published on 16 Oct 2023. 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-2023-45985 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-2023-45985/ (Markdown: https://insights.sbomify.com/CVE-2023-45985/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-45985
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-45985
- OSV: https://osv.dev/vulnerability/CVE-2023-45985

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-45985/
Summaries are generated and may contain mistakes; the official description above is the record.