# CVE-2024-36831: Null dereference in n/a

> Attackers can cause a denial of service on D-Link DAP-1520 devices via a crafted HTTP request due to a null pointer dereference.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 17 Dec 2024
- **Updated:** 17 Dec 2024
- **Also known as:** GHSA-gf85-q5rv-vmw6

## What is CVE-2024-36831?

CVE-2024-36831 is a medium-severity vulnerability in n/a, published on 17 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A NULL pointer dereference in the plugins_call_handle_uri_clean function of D-Link DAP-1520 REVA_FIRMWARE_1.10B04_BETA02_HOTFIX allows attackers to cause a Denial of Service (DoS) via a crafted HTTP request without authentication.

Weakness: CWE-476 (NULL Pointer Dereference)

## Which versions are affected by CVE-2024-36831?

It affects 1 product.


Products: Dlink Dap-1520 Firmware.

## How do I fix CVE-2024-36831?

No fix has been published for CVE-2024-36831 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-36831 being exploited?

There is no known exploitation of CVE-2024-36831 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2020-15892](https://insights.sbomify.com/CVE-2020-15892/): Memory corruption in n/a (critical 9.8)
- [CVE-2025-4354](https://insights.sbomify.com/CVE-2025-4354/): Tenda DAP-1520 storage check_dws_cookie stack-based overflow (high 8.7)
- [CVE-2025-4355](https://insights.sbomify.com/CVE-2025-4355/): Tenda DAP-1520 api set_ws_action heap-based overflow (high 8.7)
- [CVE-2025-4356](https://insights.sbomify.com/CVE-2025-4356/): Tenda DAP-1520 Authentication storage mod_graph_auth_uri_handler stack-based overflow (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-36831 and fix it if it is affected.

What it is: CVE-2024-36831 is a medium-severity vulnerability in n/a, published on 17 Dec 2024. 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-2024-36831 in the wild and no public exploit code.

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-2024-36831/ (Markdown: https://insights.sbomify.com/CVE-2024-36831/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-36831
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-36831
- OSV: https://osv.dev/vulnerability/CVE-2024-36831

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-36831/
Summaries are generated and may contain mistakes; the official description above is the record.