# CVE-2026-10122: TRENDnet TEW-432BRP formSetProtocolFilter stack-based overflow

> Remote attackers can trigger a stack-based buffer overflow in the protocol filter form, potentially executing code or crashing the device.

- **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/E:P`)
- **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:** 30 May 2026
- **Updated:** 3 Jun 2026
- **Also known as:** GHSA-6r98-67vc-rxpc

## What is CVE-2026-10122?

CVE-2026-10122 is a high-severity memory corruption vulnerability in TRENDnet TEW-432BRP, published on 30 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability has been found in TRENDnet TEW-432BRP 3.10B20. This affects the function formSetProtocolFilter of the file /goform/formSetProtocolFilter. Such manipulation of the argument protocol_name leads to stack-based buffer overflow. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. The vendor explains: "This product has been EOL for 15 years (since 2009). As the item has been EOL for such a long time, we are not able to replicate or fix any vulnerabilities." This vulnerability only affects products that are no longer supported by the maintainer.

Weakness: CWE-121 (Stack-based Buffer Overflow), CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2026-10122?


## How do I fix CVE-2026-10122?

No fix has been published for CVE-2026-10122 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-10122 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10122 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-10122 and fix it if it is affected.

What it is: CVE-2026-10122 is a high-severity memory corruption vulnerability in TRENDnet TEW-432BRP, published on 30 May 2026. 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-2026-10122 exists.

Affected product: TRENDnet TEW-432BRP. 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-2026-10122/ (Markdown: https://insights.sbomify.com/CVE-2026-10122/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-10122
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-10122
- OSV: https://osv.dev/vulnerability/CVE-2026-10122

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-10122/
Summaries are generated and may contain mistakes; the official description above is the record.