What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2021-11-03
• EPSS: 8.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-10-30 · updated 2026-06-17
• Weakness: CWE-78

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.

Affected products

• Tenda AC10: through 15.03.06.23_cn
• Tenda AC7: through 15.03.06.44_cn
• Tenda AC9: through 15.03.05.19\(6318\)_cn

References

• 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
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-14558

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