# CVE-2018-14492: Memory corruption in n/a

> A stack-based buffer overflow in Tenda routers allows remote attackers to execute arbitrary code via crafted parameters.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:** 21 Jul 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-q89p-88cf-m6x8

## What is CVE-2018-14492?

CVE-2018-14492 is a high-severity memory corruption vulnerability in n/a, published on 21 Jul 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Tenda AC7 through V15.03.06.44_CN, AC9 through V15.03.05.19(6318)_CN, and AC10 through V15.03.06.23_CN devices have a Stack-based Buffer Overflow via a long limitSpeed or limitSpeedup parameter to an unspecified /goform URI.

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

## Which versions are affected by CVE-2018-14492?

It affects 5 products.


Products: Tendacn Ac10 Firmware, Tendacn Ac15 Firmware, Tendacn Ac18 Firmware, Tendacn Ac7 Firmware, Tendacn Ac9 Firmware.

## How do I fix CVE-2018-14492?

No fix has been published for CVE-2018-14492 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-14492 being exploited?

There is no known exploitation of CVE-2018-14492 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2023-37144](https://insights.sbomify.com/CVE-2023-37144/): Command injection in n/a (critical 9.8)
- [CVE-2021-38278](https://insights.sbomify.com/CVE-2021-38278/): Memory corruption in n/a (critical 9.8)
- [CVE-2018-16334](https://insights.sbomify.com/CVE-2018-16334/): Command injection in n/a (high 8.8)
- [CVE-2021-38772](https://insights.sbomify.com/CVE-2021-38772/): Memory corruption in n/a (high 7.5)
- [CVE-2022-26243](https://insights.sbomify.com/CVE-2022-26243/): Memory corruption in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-14492 and fix it if it is affected.

What it is: CVE-2018-14492 is a high-severity memory corruption vulnerability in n/a, published on 21 Jul 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-14492 in the wild and no public exploit code.

Affected product: n/a. 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-2018-14492/ (Markdown: https://insights.sbomify.com/CVE-2018-14492/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-14492
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-14492
- OSV: https://osv.dev/vulnerability/CVE-2018-14492

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-14492/
Summaries are generated and may contain mistakes; the official description above is the record.