# CVE-2024-2703: Tenda AC10U SetOnlineDevName formSetDeviceName stack-based overflow

> A remote attacker can trigger a stack-based buffer overflow in the Tenda AC10U router via the SetOnlineDevName function, 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:** 20 Mar 2024
- **Updated:** 21 Aug 2024
- **Also known as:** GHSA-5gh8-jmm4-99ww

## What is CVE-2024-2703?

CVE-2024-2703 is a high-severity memory corruption vulnerability in Tenda AC10U, published on 20 Mar 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability classified as critical has been found in Tenda AC10U 15.03.06.49. Affected is the function formSetDeviceName of the file /goform/SetOnlineDevName. The manipulation of the argument mac leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-257454 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-2024-2703?

It affects 1 product.


Products: Tenda Ac10u Firmware.

## How do I fix CVE-2024-2703?

No fix has been published for CVE-2024-2703 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-2703 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-2703 exists.

## Other vulnerabilities in Tenda AC10U

- [CVE-2024-2763](https://insights.sbomify.com/CVE-2024-2763/): Tenda AC10U setcfm formSetCfm stack-based overflow (high 8.8)
- [CVE-2024-2764](https://insights.sbomify.com/CVE-2024-2764/): Tenda AC10U SetPptpServerCfg formSetPPTPServer stack-based overflow (high 8.8)
- [CVE-2024-2704](https://insights.sbomify.com/CVE-2024-2704/): Tenda AC10U SetFirewallCfg formSetFirewallCfg stack-based overflow (high 8.8)
- [CVE-2024-2705](https://insights.sbomify.com/CVE-2024-2705/): Tenda AC10U SetNetControlList formSetQosBand stack-based overflow (high 8.8)
- [CVE-2024-2706](https://insights.sbomify.com/CVE-2024-2706/): Tenda AC10U WifiWpsStart formWifiWpsStart stack-based overflow (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-2703 and fix it if it is affected.

What it is: CVE-2024-2703 is a high-severity memory corruption vulnerability in Tenda AC10U, published on 20 Mar 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-2024-2703 exists.

Affected product: Tenda AC10U. 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-2024-2703/ (Markdown: https://insights.sbomify.com/CVE-2024-2703/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-2703
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-2703
- OSV: https://osv.dev/vulnerability/CVE-2024-2703

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-2703/
Summaries are generated and may contain mistakes; the official description above is the record.