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 GponFor...

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

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

99.95%

100.0th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Apr 21, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Dasannetworks	Gpon Router Firmware	All versions

References

http://www.securityfocus.com/bid/107053Broken Link, Third Party Advisory, VDB Entry
https://www.exploit-db.com/exploits/44576/Exploit, Third Party Advisory, VDB Entry
https://www.vpnmentor.com/blog/critical-vulnerability-gpon-router/Exploit, Technical Description, Third Party Advisory
http://www.securityfocus.com/bid/107053Broken Link, Third Party Advisory, VDB Entry
https://www.exploit-db.com/exploits/44576/Exploit, Third Party Advisory, VDB Entry
https://www.vpnmentor.com/blog/critical-vulnerability-gpon-router/Exploit, Technical Description, Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-10562US Government Resource

Timeline

Published: May 4, 2018
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is 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.

How severe is CVE-2018-10562?

CVE-2018-10562 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 99.95% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2018-10562?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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