# CVE-2023-0617: TRENDNet TEW-811DRU httpd guestnetwork.asp buffer overflow

> Remote attackers can exploit a buffer overflow in the TRENDNet TEW-811DRU router's httpd service to execute arbitrary code or cause denial of service.

- **Severity:** High 7.5 (`CVSS:3.1/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:** 1 Feb 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-73v4-w888-f22p

## What is CVE-2023-0617?

CVE-2023-0617 is a high-severity memory corruption vulnerability in TRENDNet TEW-811DRU, published on 1 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability was found in TRENDNet TEW-811DRU 1.0.10.0. It has been classified as critical. This affects an unknown part of the file /wireless/guestnetwork.asp of the component httpd. The manipulation leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-219957 was assigned to this vulnerability.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2023-0617?

It affects 1 product.


Products: Trendnet Tew-811dru Firmware.

## How do I fix CVE-2023-0617?

No fix has been published for CVE-2023-0617 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-0617 being exploited?

There is no known exploitation of CVE-2023-0617 in the wild and no public exploit code.

## Other vulnerabilities in TRENDNet TEW-811DRU

- [CVE-2025-15472](https://insights.sbomify.com/CVE-2025-15472/): TRENDnet TEW-811DRU httpd uapply.cgi setDeviceURL os command injection (high 8.6)
- [CVE-2023-0612](https://insights.sbomify.com/CVE-2023-0612/): TRENDnet TEW-811DRU httpd basic.asp buffer overflow (high 7.5)
- [CVE-2023-0613](https://insights.sbomify.com/CVE-2023-0613/): TRENDnet TEW-811DRU httpd security.asp memory corruption (high 7.5)
- [CVE-2023-0638](https://insights.sbomify.com/CVE-2023-0638/): TRENDnet TEW-811DRU Web Interface command injection (high 7.2)
- [CVE-2023-0637](https://insights.sbomify.com/CVE-2023-0637/): TRENDnet TEW-811DRU Web Management Interface wan.asp memory corruption (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-0617 and fix it if it is affected.

What it is: CVE-2023-0617 is a high-severity memory corruption vulnerability in TRENDNet TEW-811DRU, published on 1 Feb 2023. 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-2023-0617 in the wild and no public exploit code.

Affected product: TRENDNet TEW-811DRU. 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-2023-0617/ (Markdown: https://insights.sbomify.com/CVE-2023-0617/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-0617
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-0617
- OSV: https://osv.dev/vulnerability/CVE-2023-0617

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-0617/
Summaries are generated and may contain mistakes; the official description above is the record.