How severe is CVE-2018-20219?

CVE-2018-20219 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-20219 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-20219?

CVE-2018-20219 primarily affects Teracue Enc-400 Hdmi Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-20219?

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

When was CVE-2018-20219 published?

CVE-2018-20219 was published on 2019-03-21 and last updated on 2026-06-17.

CVE-2018-20219

CVE-2018-20219 is a high-severity vulnerability in Teracue Enc-400 Hdmi Firmware with a CVSS 3.x base score of 8.1. Its EPSS exploit-prediction score of 15% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-798.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 9.3
EPSS exploit prediction: 15% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Teracue Enc-400 Hdmi Firmware
Published: 2019-03-21
Last modified: 2026-06-17

Description

An issue was discovered on Teracue ENC-400 devices with firmware 2.56 and below. After successful authentication, the device sends an authentication cookie to the end user such that they can access the devices web administration panel. This token is hard-coded to a string in the source code (/usr/share/www/check.lp file). By setting this cookie in a browser, an attacker is able to maintain access to every ENC-400 device without knowing the password, which results in authentication bypass. Even if a user changes the password on the device, this token is static and unchanged.

Frequently asked questions

What is CVE-2018-20219?: An issue was discovered on Teracue ENC-400 devices with firmware 2.56 and below. After successful authentication, the device sends an authentication cookie to the end user such that they can access the devices web administration panel. This token is hard-coded to a string in the source code (/usr/share/www/check.lp file). By setting this cookie in a browser, an attacker is able to maintain access to every ENC-400 device without knowing the password, which results in authentication bypass. Even if a user changes the password on the device, this token is static and unchanged.
How severe is CVE-2018-20219?: CVE-2018-20219 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-20219 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-20219?: CVE-2018-20219 primarily affects Teracue Enc-400 Hdmi Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-20219?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-20219 published?: CVE-2018-20219 was published on 2019-03-21 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:teracue:enc-400_hdmi_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:teracue:enc-400_hdmi2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:teracue:enc-400_hdsdi_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Teracue Enc-400 Hdmi Firmware

CVE-2018-20218 — Critical (CVSS 9.8): An issue was discovered on Teracue ENC-400 devices with firmware 2.56 and below. The login form passes user input…
CVE-2018-20220 — High (CVSS 7.5): An issue was discovered on Teracue ENC-400 devices with firmware 2.56 and below. While the web interface requires…

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