CVE-2019-19495

Name: CVE-2019-19495
Creator: NVD / NIST
Published: 2020-01-08T18:15:11.557+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 4.29%

Last modified Jun 17, 2026

CVE-2019-19495 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The web interface on the Technicolor TC7230 STEB 01.25 is vulnerable to DNS rebinding, which allows a remote attacker to configure the cable modem via JavaScript in a victim's browser. The attacker can then configure the cable modem to port forward the modem's internal TELNET server, allowing external access to a root shell.. EPSS estimates a 4.29% chance of exploitation in the next 30 days.

Description

The web interface on the Technicolor TC7230 STEB 01.25 is vulnerable to DNS rebinding, which allows a remote attacker to configure the cable modem via JavaScript in a victim's browser. The attacker can then configure the cable modem to port forward the modem's internal TELNET server, allowing external access to a root shell.

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

4.29%

89.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Technicolor	Tc7230 Steb Firmware	0.1.25

References

https://cablehaunt.comThird Party Advisory
https://github.com/Lyrebirds/Cable-Haunt-Report/releases/download/2.4/report.pdfExploit, Issue Tracking, Third Party Advisory
https://github.com/Lyrebirds/Fast8690-exploitThird Party Advisory
https://cablehaunt.comThird Party Advisory
https://github.com/Lyrebirds/Cable-Haunt-Report/releases/download/2.4/report.pdfExploit, Issue Tracking, Third Party Advisory
https://github.com/Lyrebirds/Fast8690-exploitThird Party Advisory

Timeline

Published: Jan 8, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-19495?

How severe is CVE-2019-19495?

CVE-2019-19495 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 4.29% probability of exploitation in the next 30 days.

How do I fix CVE-2019-19495?

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-2019-19495?

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

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Source: NVD / NIST