# CVE-2024-4064: Tenda AC8 execCommand R7WebsSecurityHandler stack-based overflow

> Remote attackers can trigger a stack-based buffer overflow in the Tenda AC8 router's security handler, potentially leading to arbitrary code execution.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 23 Apr 2024
- **Updated:** 3 Sep 2024
- **Also known as:** GHSA-42c2-hx35-9cg7

## What is CVE-2024-4064?

CVE-2024-4064 is a high-severity memory corruption vulnerability in Tenda Ac8 Firmware, published on 23 Apr 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was found in Tenda AC8 16.03.34.09. It has been declared as critical. This vulnerability affects the function R7WebsSecurityHandler of the file /goform/execCommand. The manipulation of the argument password leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-261790 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

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

## Which versions are affected by CVE-2024-4064?

It affects 1 product.


Products: Tenda Ac8 Firmware.

## How do I fix CVE-2024-4064?

No fix has been published for CVE-2024-4064 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-4064 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-4064 exists.

## Other vulnerabilities in Tenda Ac8 Firmware

- [CVE-2025-29100](https://insights.sbomify.com/CVE-2025-29100/): Memory corruption in n/a (critical 9.8)
- [CVE-2025-25663](https://insights.sbomify.com/CVE-2025-25663/): Memory corruption in n/a (critical 9.8)
- [CVE-2025-25664](https://insights.sbomify.com/CVE-2025-25664/): Memory corruption in n/a (critical 9.8)
- [CVE-2025-25667](https://insights.sbomify.com/CVE-2025-25667/): Memory corruption in n/a (critical 9.8)
- [CVE-2025-25668](https://insights.sbomify.com/CVE-2025-25668/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-4064 and fix it if it is affected.

What it is: CVE-2024-4064 is a high-severity memory corruption vulnerability in Tenda Ac8 Firmware, published on 23 Apr 2024. 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-2024-4064 exists.

Affected product: Tenda Ac8 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-2024-4064/ (Markdown: https://insights.sbomify.com/CVE-2024-4064/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-4064
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-4064
- OSV: https://osv.dev/vulnerability/CVE-2024-4064

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-4064/
Summaries are generated and may contain mistakes; the official description above is the record.