# CVE-2018-10562: Dasan GPON Routers Command Injection

> Attackers can execute arbitrary commands on Dasan GPON home routers via the ping diagnostic feature, potentially gaining full control of the device.

- **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:** Yes, since 31 Mar 2022 (CISA KEV), used in ransomware
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 4 May 2018
- **Updated:** 21 Oct 2025
- **Also known as:** GHSA-6x97-cqx6-mvmq

## What is CVE-2018-10562?

CVE-2018-10562 is a critical command injection vulnerability in n/a, published on 4 May 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered on Dasan GPON home routers. Command Injection can occur via the dest_host parameter in a diag_action=ping request to a GponForm/diag_Form URI. Because the router saves ping results in /tmp and transmits them to the user when the user revisits /diag.html, it's quite simple to execute commands and retrieve their output.

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

## Which versions are affected by CVE-2018-10562?

It affects 1 product.


Products: Dasannetworks Gpon Router Firmware.

## How do I fix CVE-2018-10562?

No fix has been published for CVE-2018-10562 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 21 Apr 2022.

## Is CVE-2018-10562 being exploited?

Yes. Attackers have exploited CVE-2018-10562 in the wild since at least 31 Mar 2022, including in ransomware campaigns.

Public exploit code:

- Exploit for Mass Remote Code Execution on GPON home routers (CVE-2018-10562) obtained from Shodan. (github_poc): https://github.com/649/Pingpon-Exploit
- Exploit for Remote Code Execution on GPON home routers (CVE-2018-10562) written in Python. (github_poc): https://github.com/c0ld1/GPON_RCE
- Exploit for CVE-2018-10562 (github_poc): https://github.com/ATpiu/CVE-2018-10562
- Exploit loader for Remote Code Execution w/ Payload on GPON Home Gateway devices (CVE-2018-10562) written in Python. (github_poc): https://github.com/Choudai/GPON-LOADER
- GPON Routers - Authentication Bypass / Command Injection (exploitdb)
- Python exploit for Remote Code Executuion on GPON home routers (CVE-2018-10562). Initially disclosed by VPNMentor (https://www.vpnmentor.com/blog/critical-vulnerability-gpon-router/), kudos for their work. (github_poc): https://github.com/ExiaHan/GPON

## Other vulnerabilities in n/a

- [CVE-2018-10561](https://insights.sbomify.com/CVE-2018-10561/): Dasan GPON Routers Authentication Bypass (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-10562 and fix it if it is affected.

What it is: CVE-2018-10562 is a critical command injection vulnerability in n/a, published on 4 May 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2018-10562 in the wild since at least 31 Mar 2022, including in ransomware campaigns.

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-2018-10562/ (Markdown: https://insights.sbomify.com/CVE-2018-10562/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-10562
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-10562
- OSV: https://osv.dev/vulnerability/CVE-2018-10562

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-10562/
Summaries are generated and may contain mistakes; the official description above is the record.