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

> CVE-2018-10562: Dasan GPON Routers Command Injection Vulnerability. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2018-10562
Last updated: 2025-10-21T23:45:51Z

- Published: 2018-05-04 03:00 UTC · Updated: 2025-10-21 23:45 UTC · Assigner: mitre
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 99.9%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-03-31, federal due date 2022-04-21, ransomware use: Known

## 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.

## CISA required action

The impacted product is end-of-life and should be disconnected if still in use.

## Affected vendors and products

- Dasan: Gigabit Passive Optical Network (GPON) Routers

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2018-10562)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2018-10562)
- [https://www.exploit-db.com/exploits/44576/](https://www.exploit-db.com/exploits/44576/)
- [https://www.vpnmentor.com/blog/critical-vulnerability-gpon-router/](https://www.vpnmentor.com/blog/critical-vulnerability-gpon-router/)
- [http://www.securityfocus.com/bid/107053](http://www.securityfocus.com/bid/107053)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2018-10562 · Markdown: https://rewindex.com/cve/CVE-2018-10562.md · JSON: https://rewindex.com/api/v1/cves/CVE-2018-10562 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T01:59:17.308Z