Threat Intelligence / CVE / CVE-2018-10562

CVE-2018-10562 — Dasannetworks Gpon Router Firmware

CISA KEVRansomware
CVSS v3.1 9.8 (CRITICAL) · EPSS 99.9% (higher than 99.9% of all scored CVEs) · Priority 10/10 · Published 2018-05-04

As of 2025-10-21, CVE-2018-10562 is a CRITICAL-severity vulnerability in Dasannetworks Gpon Router Firmware, CVSS v3.1 9.8, EPSS 99.9% (99.9th percentile). It is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-31), with a US federal remediation deadline of 2022-04-21, and CISA links it to known ransomware campaigns. Threadlinqs Intelligence links 2 tracked threat campaigns to CVE-2018-10562, most recently “TuxBot v3 Evolution: LLM-Assisted IoT Botnet Framework With a Broken Multi-CVE Exploit Chain”.

Last updated: 2025-10-21

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.

The record classifies CVE-2018-10562 under weakness class CWE-78. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 2 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 3054 days ago.

Severity and exploitation probability

CVSS v3.1 base score
9.8 — CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (FIRST)
99.9% probability of exploitation in the next 30 days, higher than 99.9% of all scored CVEs
CISA KEV
Listed since 2022-03-31, federal remediation deadline 2022-04-21 — used in known ransomware campaigns
Threadlinqs priority
10/10 — CISA lists it as used in ransomware, which Threadlinqs scores at the maximum
Published
2018-05-04, last modified 2025-10-21

Is CVE-2018-10562 being exploited?

CISA added CVE-2018-10562 to the Known Exploited Vulnerabilities catalog on 2022-03-31, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2022-04-21 under BOD 22-01. CISA flags the vulnerability as one used in known ransomware campaigns. Weaponised exploit code for CVE-2018-10562 is publicly available. 7 public proof-of-concept repositories are tracked for this identifier. A ProjectDiscovery Nuclei detection template exists (http/cves/2018/CVE-2018-10562.yaml). It currently carries a trending score of 45 in the Threadlinqs vulnerability feed.

Affected products and versions

How to fix CVE-2018-10562

Because CVE-2018-10562 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2022-04-21. No vendor patch reference has been recorded for CVE-2018-10562 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

Threat activity tracking CVE-2018-10562

2 tracked threats in the Threadlinqs corpus reference CVE-2018-10562, either in the campaign’s CVE list or as an indicator on the campaign record.

Sources

Enriched from CVE.org, NVD, FIRST EPSS, CISA KEV, GitHub Security Advisories, public proof-of-concept repositories, ProjectDiscovery Nuclei. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.

Exploit and proof of concept

Vulnerability database entry

Other references

Full detection coverage & IOCs for threats exploiting CVE-2018-10562 are available via the Threadlinqs MCP server (Purple tier). View plans →

← all vulnerabilities · Markdown version · Threadlinqs Intelligence