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CVE-2018-10562

Critical 9.8 Exploited in the wild (KEV) Used in ransomware campaigns

Confirmed active exploitation — CISA KEV catalog

Name
Dasan GPON Routers Command Injection Vulnerability
Added to catalog
Remediation due date (US federal)
Required action
The impacted product is end-of-life and should be disconnected if still in use.

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.

Metrics

CVSS 3.1
9.8 (CRITICAL) Score source: NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS — exploit probability
100% (percentile: 100) as of 1 November 2026
CWE
CWE-78

Affected products

dasannetworks: gpon router firmware; dasannetworks: gpon router

References