# CVE-2018-14558: Tenda AC7, AC9, and AC10 Routers Command Injection Vulnerability

> CVE-2018-14558: Tenda AC7, AC9, and AC10 Routers Command Injection Vulnerability. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2018-14558
Last updated: 2025-10-21T23:45:47Z

- Published: 2018-10-30 18:00 UTC · Updated: 2025-10-21 23:45 UTC · Assigner: mitre
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 8.5%, 95th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2021-11-03, federal due date 2022-05-03, ransomware use: Unknown

## 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.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- Tenda: AC7, AC9, and AC10 Routers

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2018-14558)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2018-14558)
- [https://github.com/zsjevilhex/iot/blob/master/route/tenda/tenda-01/Tenda.md](https://github.com/zsjevilhex/iot/blob/master/route/tenda/tenda-01/Tenda.md)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2018-14558 · Markdown: https://rewindex.com/cve/CVE-2018-14558.md · JSON: https://rewindex.com/api/v1/cves/CVE-2018-14558 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T01:59:16.037Z