November 3, 2021 · Applied Cybernetics Group
CVE-2018-14558 — Tenda AC7, AC9, and AC10 Routers
Tenda AC7, AC9, and AC10 Routers Command Injection Vulnerability
- Added to KEV
2021-11-03- Federal due date
2022-05-03- Vendor
- Tenda
- Product
- AC7, AC9, and AC10 Routers
- EPSS
- 94.5th percentile (score 0.087, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2018-14558
CISA short description
Tenda AC7, AC9, and AC10 devices contain a command injection vulnerability due to the "formsetUsbUnload" function executes a dosystemCmd function with untrusted input. Successful exploitation allows an attacker to execute OS commands via a crafted goform/setUsbUnload request.
Required action
Apply updates per vendor instructions.