How severe is CVE-2019-11400?

CVE-2019-11400 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-2019-11400 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 17% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-11400?

CVE-2019-11400 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-2019-11400?

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-2019-11400 published?

CVE-2019-11400 was published on 2019-12-18 and last updated on 2026-06-17.

CVE-2019-11400

CVE-2019-11400 is a critical-severity vulnerability in Trendnet Tew-651br Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 17% places it in the 97th percentile, indicating an elevated likelihood of exploitation. 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: 17% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
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. A buffer overflow occurs through the get_set.ccp ccp_act parameter.

Frequently asked questions

What is CVE-2019-11400?: An issue was discovered on TRENDnet TEW-651BR 2.04B1, TEW-652BRP 3.04b01, and TEW-652BRU 1.00b12 devices. A buffer overflow occurs through the get_set.ccp ccp_act parameter.
How severe is CVE-2019-11400?: CVE-2019-11400 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-2019-11400 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 17% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-11400?: CVE-2019-11400 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-2019-11400?: 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-2019-11400 published?: CVE-2019-11400 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:*:*:*:*:*:*:*

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