How severe is CVE-2018-19239?

CVE-2018-19239 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-19239 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-19239?

CVE-2018-19239 affects Trendnet Tew-673gru Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-19239?

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-2018-19239 published?

CVE-2018-19239 was published on 2018-12-20 and last updated on 2026-06-17.

CVE-2018-19239

CVE-2018-19239 is a high-severity vulnerability in Trendnet Tew-673gru Firmware with a CVSS 3.x base score of 7.2. 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-78.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 9.0
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Trendnet Tew-673gru Firmware
Published: 2018-12-20
Last modified: 2026-06-17

Description

TRENDnet TEW-673GRU v1.00b40 devices have an OS command injection vulnerability in the start_arpping function of the timer binary, which allows remote attackers to execute arbitrary commands via three parameters (dhcpd_start, dhcpd_end, and lan_ipaddr) passed to the apply.cgi binary through a POST request.

Frequently asked questions

What is CVE-2018-19239?: TRENDnet TEW-673GRU v1.00b40 devices have an OS command injection vulnerability in the start_arpping function of the timer binary, which allows remote attackers to execute arbitrary commands via three parameters (dhcpd_start, dhcpd_end, and lan_ipaddr) passed to the apply.cgi binary through a POST request.
How severe is CVE-2018-19239?: CVE-2018-19239 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-19239 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-19239?: CVE-2018-19239 affects Trendnet Tew-673gru Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-19239?: 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-2018-19239 published?: CVE-2018-19239 was published on 2018-12-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:trendnet:tew-673gru_firmware:1.00b40:*:*:*:*:*:*:*

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