Is CVE-2018-14558 actively exploited?

CVE-2018-14558 has no public evidence of in-the-wild exploitation as of 2025-11-07.

What is the CVSS score for CVE-2018-14558?

CVE-2018-14558 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2018-14558?

Patch guidance is available from tenda security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2018-14558.

Fix CVE-2018-14558 - CRITICAL tenda ac7 firmware

Q: Which products are affected by CVE-2018-14558?

3 products: tenda ac7 firmware, tenda ac9 firmware, tenda ac10 firmware.

Description

An issue was discovered on Tenda AC7 devices with firmware through V15.03.06.44_CN(AC7), AC9 devices with firmware through V15.03.05.19(6318)_CN(AC9), and AC10 devices with firmware through V15.03.06.23_CN(AC10). A command Injection vulnerability allows attackers to execute arbitrary OS commands via a crafted goform/setUsbUnload request. This occurs because the "formsetUsbUnload" function executes a dosystemCmd function with untrusted input.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-78 · OS Command Injection CWE-78 · OS Command Injection

Metadata

Primary Vendor: TENDA
Published: 10/30/2018
Last Modified: 11/7/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2018-14558

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary