# CVE-2026-86167: Tenda HG10 Boa formgponConf os command injection

> Remote attackers can execute arbitrary OS commands via the fmgpon_loid argument in the Boa web interface of Tenda HG10 routers.

- **Severity:** Critical 9.4 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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:** 6 Sep 2026
- **Updated:** 8 Sep 2026
- **Also known as:** GHSA-w592-pr34-frcq

## What is CVE-2026-86167?

CVE-2026-86167 is a critical command injection vulnerability in Tenda HG10, published on 6 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was identified in Tenda HG10 300001138. Impacted is the function formgponConf of the file /boaform/admin/formgponConf of the component Boa. The manipulation of the argument fmgpon_loid leads to os command injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command), CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2026-86167?


## How do I fix CVE-2026-86167?

No fix has been published for CVE-2026-86167 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-86167 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-86167 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-86167 and fix it if it is affected.

What it is: CVE-2026-86167 is a critical command injection vulnerability in Tenda HG10, published on 6 Sep 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-2026-86167 exists.

Affected product: Tenda HG10. 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-2026-86167/ (Markdown: https://insights.sbomify.com/CVE-2026-86167/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-86167
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-86167
- OSV: https://osv.dev/vulnerability/CVE-2026-86167

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-86167/
Summaries are generated and may contain mistakes; the official description above is the record.