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Vulnerability record · CVE-2019-17186 · published 8 October 2019

CVE-2019-17186: Fiberhome hg2201t firmware missing authentication for critical function vulnerability

Fiberhome · Hg2201t Firmware

/var/WEB-GUI/cgi-bin/telnet.cgi on FiberHome HG2201T 1.00.M5007_JS_201804 devices allows pre-authentication remote code execution.

8.8 CVSS 3.1 High EPSS 5.9% · top 7.0% CWE-306 · Missing authentication for critical function
8.8CVSS 3.1 base score, v2 9.0
5.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

/var/WEB-GUI/cgi-bin/telnet.cgi on FiberHome HG2201T 1.00.M5007_JS_201804 devices allows pre-authentication remote code execution.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://gist.github.com/ztz472947849/d62e7b6f4831b55c338ef22432eca06d ExploitThird Party Advisory
https://gist.github.com/ztz472947849/d62e7b6f4831b55c338ef22432eca06d ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-17186), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.