How severe is CVE-2018-19240?

CVE-2018-19240 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-2018-19240 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-19240?

CVE-2018-19240 primarily affects Trendnet Tv-ip110wn Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-19240?

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-2018-19240 published?

CVE-2018-19240 was published on 2018-12-20 and last updated on 2026-06-17.

CVE-2018-19240

CVE-2018-19240 is a critical-severity vulnerability in Trendnet Tv-ip110wn 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-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Trendnet Tv-ip110wn Firmware
Published: 2018-12-20
Last modified: 2026-06-17

Description

Buffer overflow in network.cgi on TRENDnet TV-IP110WN V1.2.2 build 68, V1.2.2.65, and V1.2.2 build 64 and TV-IP121WN V1.2.2 build 28 devices allows attackers to hijack the control flow to any attacker-specified location by crafting a POST request payload (without authentication).

Frequently asked questions

What is CVE-2018-19240?: Buffer overflow in network.cgi on TRENDnet TV-IP110WN V1.2.2 build 68, V1.2.2.65, and V1.2.2 build 64 and TV-IP121WN V1.2.2 build 28 devices allows attackers to hijack the control flow to any attacker-specified location by crafting a POST request payload (without authentication).
How severe is CVE-2018-19240?: CVE-2018-19240 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-2018-19240 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-19240?: CVE-2018-19240 primarily affects Trendnet Tv-ip110wn Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-19240?: 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-2018-19240 published?: CVE-2018-19240 was published on 2018-12-20 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:o:trendnet:tv-ip110wn_firmware:1.2.2.64:*:*:*:*:*:*:*
cpe:2.3:o:trendnet:tv-ip110wn_firmware:1.2.2.65:*:*:*:*:*:*:*
cpe:2.3:o:trendnet:tv-ip110wn_firmware:1.2.2.68:*:*:*:*:*:*:*
cpe:2.3:o:trendnet:tv-ip121wn_firmware:1.2.2.28:*:*:*:*:*:*:*

More vulnerabilities in Trendnet Tv-ip110wn Firmware

CVE-2019-11417 — Critical (CVSS 9.8): system.cgi on TRENDnet TV-IP110WN cameras has a buffer overflow caused by an inadequate source-length check before a…
CVE-2018-19241 — High (CVSS 7.5): Buffer overflow in video.cgi on TRENDnet TV-IP110WN V1.2.2 build 68, V1.2.2.65, and V1.2.2 build 64 and TV-IP121WN…
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