What is CVE-2018-10562?

CVE-2018-10562 is a critical-severity vulnerability in Dasannetworks Gpon Router, classified under OS Command Injection. CVSS score: 9.8/10. Published 2018-05-04.

How severe is CVE-2018-10562?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2018-10562 known to be exploited?

Yes. CVE-2018-10562 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-31), indicating it is being actively exploited. 30 public proof-of-concept repositories are indexed.

RCE in Dasannetworks Gpon Router

CVE-2018-10562

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.

Vulnerability class: Command Injection (OS Command Injection)

Published 2018-05-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.999 (100.0th percentile), scored 2026-10-11.

Very high probability of exploitation in the next 30 days — among the top 0.1% most-likely-to-be-exploited CVEs. 100th percentile — 100.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

Weakness classification (CWE)

CWE-78 — OS Command Injection

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-03-31. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-04-21.

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

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

www.securityfocus.com/bid/107053 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
www.exploit-db.com/exploits/44576/ (Exploit, VDB Entry, Third Party Advisory, exploit)
www.vpnmentor.com/blog/critical-vulnerability-gpon-router/ (Technical Description, Exploit, Third Party Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2018-10562?: CVE-2018-10562 is a critical-severity vulnerability in Dasannetworks Gpon Router, classified under OS Command Injection. CVSS score: 9.8/10. Published 2018-05-04.
How severe is CVE-2018-10562?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2018-10562 known to be exploited?: Yes. CVE-2018-10562 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-31), indicating it is being actively exploited. 30 public proof-of-concept repositories are indexed.