What is the CVSS score of CVE-2019-11399?

CVE-2019-11399 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 3.0%.

Tew 651Br Firmware CVE-2019-11399

CRITICAL

OS Command Injection (CWE-78)

2019-12-18 cve@mitre.org

Command Injection Tew 651Br Firmware Tew 652Brp Firmware Tew 652Bru Firmware

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Dec 18, 2019 - 15:15 nvd

CRITICAL 9.8

DescriptionNVD

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.

AnalysisAI

An issue was discovered on TRENDnet TEW-651BR 2.04B1, TEW-652BRP 3.04b01, and TEW-652BRU 1.00b12 devices. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. 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. Affected products include: Trendnet Tew-651Br Firmware, Trendnet Tew-652Brp Firmware, Trendnet Tew-652Bru Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.