VULNERABILITY INTELLIGENCE

CVE-2019-9974

CVSS score9.1 CRITICAL

EPSS probability2.92%

CISA KEVNot currently listed

Published2019-04-11

Last modified2026-06-17

CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Description

diag_tool.cgi on DASAN H660RM GPON routers with firmware 1.03-0022 lacks any authorization check, which allows remote attackers to run a ping command via a GET request to enumerate LAN devices or crash the router with a DoS attack.

Weakness classification

nvd@nist.gov: CWE-306

Primary references

cve@mitre.org — Third Party Advisory, VDB Entry
cve@mitre.org — Exploit, Third Party Advisory
cve@mitre.org — Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory