# CVE-2026-5036: Tenda 4G06 Endpoint DhcpListClient fromDhcpListClient stack-based overflow

> Remote attackers can trigger a stack-based buffer overflow in the Tenda 4G06 router's DHCP list endpoint, potentially leading to arbitrary code execution.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Mar 2026
- **Updated:** 30 Mar 2026
- **Also known as:** GHSA-737m-qjmx-7gx3

## What is CVE-2026-5036?

CVE-2026-5036 is a high-severity memory corruption vulnerability in Tenda 4G06, published on 29 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was found in Tenda 4G06 04.06.01.29. This vulnerability affects the function fromDhcpListClient of the file /goform/DhcpListClient of the component Endpoint. Performing a manipulation of the argument page results in stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made public and could be used.

Weakness: CWE-121 (Stack-based Buffer Overflow), CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2026-5036?

It affects 1 product.


Products: Tenda 4g06 Firmware.

## How do I fix CVE-2026-5036?

No fix has been published for CVE-2026-5036 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-5036 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5036 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-5036 and fix it if it is affected.

What it is: CVE-2026-5036 is a high-severity memory corruption vulnerability in Tenda 4G06, published on 29 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5036 exists.

Affected product: Tenda 4G06. 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-2026-5036/ (Markdown: https://insights.sbomify.com/CVE-2026-5036/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-5036
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-5036
- OSV: https://osv.dev/vulnerability/CVE-2026-5036

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-5036/
Summaries are generated and may contain mistakes; the official description above is the record.