How severe is CVE-2019-19495?

CVE-2019-19495 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-19495 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-19495?

CVE-2019-19495 affects Technicolor Tc7230 Steb Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-19495?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2019-19495 published?

CVE-2019-19495 was published on 2020-01-08 and last updated on 2026-06-17.

CVE-2019-19495

CVE-2019-19495 is a critical-severity vulnerability in Technicolor Tc7230 Steb Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Technicolor Tc7230 Steb Firmware
Published: 2020-01-08
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2019-19495?: 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.
How severe is CVE-2019-19495?: CVE-2019-19495 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-19495 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-19495?: CVE-2019-19495 affects Technicolor Tc7230 Steb Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-19495?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-19495 published?: CVE-2019-19495 was published on 2020-01-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:technicolor:tc7230_steb_firmware:0.1.25:*:*:*:*:*:*:*

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