# CVE-2023-27076: Command injection in n/a

> An attacker can execute arbitrary code on Tenda G103 routers via the language parameter due to a command injection vulnerability.

- **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:** 10 Apr 2023
- **Updated:** 5 May 2025
- **Also known as:** GHSA-4vjm-pw8m-56h5

## What is CVE-2023-27076?

CVE-2023-27076 is a critical command injection vulnerability in n/a, published on 10 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Command injection vulnerability found in Tenda G103 v.1.0.0.5 allows attacker to execute arbitrary code via a the language parameter.

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

## Which versions are affected by CVE-2023-27076?

It affects 1 product.


Products: Tenda G103 Firmware.

## How do I fix CVE-2023-27076?

No fix has been published for CVE-2023-27076 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-27076 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-27076 exists.

## Other vulnerabilities in n/a

- [CVE-2023-33530](https://insights.sbomify.com/CVE-2023-33530/): Command injection in n/a (high 8.8)
- [CVE-2023-27079](https://insights.sbomify.com/CVE-2023-27079/): Command injection in n/a (high 7.5)
- [CVE-2026-5338](https://insights.sbomify.com/CVE-2026-5338/): Tenda G103 Setting system.lua action_set_system_settings command injection (medium 5.1)
- [CVE-2026-5339](https://insights.sbomify.com/CVE-2026-5339/): Tenda G103 Setting gpon.lua action_set_net_settings command injection (medium 5.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-27076 and fix it if it is affected.

What it is: CVE-2023-27076 is a critical command injection vulnerability in n/a, published on 10 Apr 2023. 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-2023-27076 exists.

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-2023-27076/ (Markdown: https://insights.sbomify.com/CVE-2023-27076/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-27076
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-27076
- OSV: https://osv.dev/vulnerability/CVE-2023-27076

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-27076/
Summaries are generated and may contain mistakes; the official description above is the record.