CVE-2019-15066

Name: CVE-2019-15066
Creator: NVD / NIST
Published: 2019-10-17T20:15:12.397+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.64%

Last modified Jun 17, 2026

CVE-2019-15066 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An “invalid command” handler issue was discovered in HiNet GPON firmware < I040GWR190731. It allows an attacker to execute arbitrary command through port 6998. EPSS estimates a 1.64% chance of exploitation in the next 30 days.

Description

An “invalid command” handler issue was discovered in HiNet GPON firmware < I040GWR190731. It allows an attacker to execute arbitrary command through port 6998. CVSS 3.0 Base score 10.0. CVSS vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).

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

1.64%

73.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Hinet	Gpon Firmware	< i040gwr190731

References

https://tvn.twcert.org.tw/taiwanvn/TVN-201908012Third Party Advisory
https://www.twcert.org.tw/en/cp-128-3017-fd6bc-2.htmlThird Party Advisory
https://tvn.twcert.org.tw/taiwanvn/TVN-201908012Third Party Advisory
https://www.twcert.org.tw/en/cp-128-3017-fd6bc-2.htmlThird Party Advisory

Timeline

Published: Oct 17, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-15066?

How severe is CVE-2019-15066?

CVE-2019-15066 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.64% probability of exploitation in the next 30 days.

How do I fix CVE-2019-15066?

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.

Are you affected by CVE-2019-15066?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST