CVE-2017-9138: There is a debug-interface vulnerability on some Tenda routers (FH1202/F1202/F1200: versions before 1.2.0.20).

Security readout for executives and security teams

Some Tenda routers allowed a locally connected person to bypass intended restrictions through a debug interface. A successful attacker could interact with the router at a command level or change the router username and password, creating a serious local-network takeover risk. Exposure is limited to environments still using Tenda FH1202, F1202, or F1200 routers with firmware earlier than 1.2.0.20. The described path requires local wired or wireless connectivity, so guest Wi-Fi, shared offices, and unmanaged networks increase relevance. Treat as high priority where affected Tenda routers remain in use, especially in shared or guest-access networks. The issue is older, but compromise impact could include router control and credential changes. Mitigation focus: Inventory Tenda FH1202, F1202, and F1200 routers.; Check Tenda guidance and upgrade firmware beyond affected versions.; Restrict wired and wireless access to trusted users only..

Prepared

Jun 13, 2026, 05:01 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.