# CVE-2024-24543: Memory corruption in n/a

> A remote attacker can cause denial of service or execute arbitrary code on Tenda AC9 routers via a buffer overflow in the setSchedWifi function.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Feb 2024
- **Updated:** 15 May 2025
- **Also known as:** GHSA-9wxq-v2f6-8h7g

## What is CVE-2024-24543?

CVE-2024-24543 is a critical memory corruption vulnerability in Tenda Ac9 Firmware, published on 5 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Buffer Overflow vulnerability in the function setSchedWifi in Tenda AC9 v.3.0, firmware version v.15.03.06.42_multi allows a remote attacker to cause a denial of service or run arbitrary code via crafted overflow data.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2024-24543?

It affects 1 product.


Products: Tenda Ac9 Firmware.

## How do I fix CVE-2024-24543?

No fix has been published for CVE-2024-24543 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-24543 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-24543 exists.

## Other vulnerabilities in Tenda Ac9 Firmware

- [CVE-2025-45042](https://insights.sbomify.com/CVE-2025-45042/): Command injection in n/a (critical 9.8)
- [CVE-2025-44872](https://insights.sbomify.com/CVE-2025-44872/): Command injection in n/a (critical 9.8)
- [CVE-2025-44877](https://insights.sbomify.com/CVE-2025-44877/): Command injection in n/a (critical 9.8)
- [CVE-2025-45427](https://insights.sbomify.com/CVE-2025-45427/): Memory corruption in n/a (critical 9.8)
- [CVE-2025-45428](https://insights.sbomify.com/CVE-2025-45428/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-24543 and fix it if it is affected.

What it is: CVE-2024-24543 is a critical memory corruption vulnerability in Tenda Ac9 Firmware, published on 5 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-24543 exists.

Affected product: Tenda Ac9 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-2024-24543/ (Markdown: https://insights.sbomify.com/CVE-2024-24543/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-24543
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-24543
- OSV: https://osv.dev/vulnerability/CVE-2024-24543

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-24543/
Summaries are generated and may contain mistakes; the official description above is the record.