# CVE-2024-7151: Tenda O3 setMacFilter fromMacFilterSet stack-based overflow

> Remote attackers can trigger a stack-based buffer overflow in the Tenda O3 router's MAC filter function, 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`)
- **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:** 27 Jul 2024
- **Updated:** 1 Aug 2024
- **Also known as:** GHSA-c685-q6wp-j7wq

## What is CVE-2024-7151?

CVE-2024-7151 is a high-severity memory corruption vulnerability in Tenda O3, published on 27 Jul 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 O3 1.0.0.10(2478). It has been declared as critical. This vulnerability affects the function fromMacFilterSet of the file /goform/setMacFilter. The manipulation of the argument remark 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-272554 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-2024-7151?

It affects 1 product.


Products: Tenda O3 Firmware.

## How do I fix CVE-2024-7151?

No fix has been published for CVE-2024-7151 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-7151 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-7151 exists.

## Other vulnerabilities in Tenda O3

- [CVE-2025-55613](https://insights.sbomify.com/CVE-2025-55613/): Memory corruption in n/a (critical 9.8)
- [CVE-2024-36604](https://insights.sbomify.com/CVE-2024-36604/): Command injection in n/a (critical 9.8)
- [CVE-2025-7421](https://insights.sbomify.com/CVE-2025-7421/): Tenda O3V2 httpd operateMacFilter fromMacFilterModify stack-based overflow (high 8.7)
- [CVE-2025-7422](https://insights.sbomify.com/CVE-2025-7422/): Tenda O3V2 httpd setNetworkService setAutoReboot stack-based overflow (high 8.7)
- [CVE-2025-7423](https://insights.sbomify.com/CVE-2025-7423/): Tenda O3V2 httpd setWrlFilterList formWifiMacFilterSet stack-based overflow (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-7151 and fix it if it is affected.

What it is: CVE-2024-7151 is a high-severity memory corruption vulnerability in Tenda O3, published on 27 Jul 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-2024-7151 exists.

Affected product: Tenda O3. 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-2024-7151/ (Markdown: https://insights.sbomify.com/CVE-2024-7151/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-7151
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-7151
- OSV: https://osv.dev/vulnerability/CVE-2024-7151

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-7151/
Summaries are generated and may contain mistakes; the official description above is the record.