How severe is CVE-2019-11399?

CVE-2019-11399 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-2019-11399 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-11399?

CVE-2019-11399 primarily affects Trendnet Tew-651br 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-2019-11399?

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-2019-11399 published?

CVE-2019-11399 was published on 2019-12-18 and last updated on 2026-06-17.

CVE-2019-11399

CVE-2019-11399 is a critical-severity vulnerability in Trendnet Tew-651br 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-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Trendnet Tew-651br Firmware
Published: 2019-12-18
Last modified: 2026-06-17

Description

An issue was discovered on TRENDnet TEW-651BR 2.04B1, TEW-652BRP 3.04b01, and TEW-652BRU 1.00b12 devices. OS command injection occurs through the get_set.ccp lanHostCfg_HostName_1.1.1.0.0 parameter.

Frequently asked questions

What is CVE-2019-11399?: An issue was discovered on TRENDnet TEW-651BR 2.04B1, TEW-652BRP 3.04b01, and TEW-652BRU 1.00b12 devices. OS command injection occurs through the get_set.ccp lanHostCfg_HostName_1.1.1.0.0 parameter.
How severe is CVE-2019-11399?: CVE-2019-11399 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-2019-11399 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-11399?: CVE-2019-11399 primarily affects Trendnet Tew-651br 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-2019-11399?: 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-2019-11399 published?: CVE-2019-11399 was published on 2019-12-18 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:trendnet:tew-651br_firmware:2.04b1:*:*:*:*:*:*:*
cpe:2.3:o:trendnet:tew-652brp_firmware:3.04b01:*:*:*:*:*:*:*
cpe:2.3:o:trendnet:tew-652bru_firmware:1.00b12:*:*:*:*:*:*:*

More vulnerabilities in Trendnet Tew-651br Firmware

CVE-2019-11400 — Critical (CVSS 9.8): An issue was discovered on TRENDnet TEW-651BR 2.04B1, TEW-652BRP 3.04b01, and TEW-652BRU 1.00b12 devices. A buffer…
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CVE-2024-51190 — Medium (CVSS 4.8): TRENDnet TEW-651BR 2.04B1, TEW-652BRP 3.04b01, and TEW-652BRU 1.00b12 devices contain a Store Cross-site scripting…
CVE-2024-51189 — Medium (CVSS 4.8): TRENDnet TEW-651BR 2.04B1, TEW-652BRP 3.04b01, and TEW-652BRU 1.00b12 devices contain a Store Cross-site scripting…
CVE-2024-51188 — Medium (CVSS 4.8): TRENDnet TEW-651BR 2.04B1, TEW-652BRP 3.04b01, and TEW-652BRU 1.00b12 devices contain a Store Cross-site scripting…
CVE-2024-51187 — Medium (CVSS 4.8): TRENDnet TEW-651BR 2.04B1, TEW-652BRP 3.04b01, and TEW-652BRU 1.00b12 devices contain a Store Cross-site scripting…

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