CVE-2025-2989 Overview
CVE-2025-2989 is an improper access control vulnerability in the Tenda FH1202 router running firmware version 1.2.0.14(408). The flaw resides in the /goform/AdvSetWrl endpoint of the Web Management Interface. An unauthenticated remote attacker can manipulate this endpoint to bypass access controls and modify wireless configuration parameters. The exploit has been publicly disclosed, increasing the risk of opportunistic attacks against exposed devices. This vulnerability is categorized under [CWE-266] (Incorrect Privilege Assignment) and affects the confidentiality and integrity of router configurations.
Critical Impact
Remote attackers can reach the /goform/AdvSetWrl endpoint without authentication and alter wireless settings on affected Tenda FH1202 devices.
Affected Products
- Tenda FH1202 hardware device
- Tenda FH1202 firmware version 1.2.0.14(408)
- Web Management Interface component (/goform/AdvSetWrl)
Discovery Timeline
- 2025-03-31 - CVE-2025-2989 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-2989
Vulnerability Analysis
The vulnerability affects the /goform/AdvSetWrl handler in the Tenda FH1202 Web Management Interface. This endpoint governs advanced wireless configuration on the router. The handler fails to enforce proper access controls, allowing remote users to invoke sensitive configuration functions without proper authorization checks. Attackers can send crafted HTTP requests directly to the endpoint over the network. Successful exploitation results in unauthorized modification of wireless settings, which can degrade the integrity of the device configuration. The public disclosure of the exploit details increases exposure for organizations that have management interfaces reachable from untrusted networks.
Root Cause
The root cause is improper access control [CWE-266] in the AdvSetWrl request handler. The Web Management Interface does not validate the requester's authorization state before processing configuration parameters submitted to /goform/AdvSetWrl. This design flaw allows unauthenticated network callers to influence device state that should be limited to administrative sessions.
Attack Vector
The attack vector is network-based and requires no privileges or user interaction. An attacker sends a crafted HTTP request to the /goform/AdvSetWrl URI on the router's management interface. If the management interface is exposed to the LAN or WAN, the attacker can manipulate wireless configuration parameters remotely. For technical proof-of-concept details, see the Notion Documentation for Tenda FH1202 and the VulDB #302038 - Vulnerability Info.
No verified exploit code is included here. Refer to the VulDB #302038 - Threat Report for additional exploitation context.
Detection Methods for CVE-2025-2989
Indicators of Compromise
- Unexpected HTTP POST or GET requests targeting the /goform/AdvSetWrl URI on Tenda FH1202 devices.
- Unauthorized changes to wireless configuration parameters, including SSID, channel, or security settings.
- Web management interface access from external or untrusted source IP addresses.
Detection Strategies
- Inspect router logs and network traffic for requests to /goform/AdvSetWrl originating from non-administrative hosts.
- Alert on repeated HTTP requests to the Tenda FH1202 web management interface without a preceding authentication flow.
- Compare current router configuration snapshots against a known-good baseline to identify unauthorized wireless setting changes.
Monitoring Recommendations
- Log all HTTP requests to the router management interface and forward them to a centralized SIEM for analysis.
- Monitor for management interface exposure on WAN interfaces using external attack surface scans.
- Track configuration drift on IoT and networking equipment with periodic integrity checks.
How to Mitigate CVE-2025-2989
Immediate Actions Required
- Restrict access to the Tenda FH1202 web management interface to trusted internal management networks only.
- Disable remote WAN-side administration on affected devices until a vendor patch is available.
- Change default administrator credentials and enforce strong authentication on the management interface.
- Segment vulnerable IoT and networking equipment onto isolated VLANs with strict egress controls.
Patch Information
At the time of the last NVD update, no vendor patch has been referenced for CVE-2025-2989. Monitor the Tenda Official Website for firmware updates addressing the /goform/AdvSetWrl access control flaw. Additional tracking is available via VulDB #302038 - Vulnerability Info.
Workarounds
- Place the router behind a firewall that blocks external access to the HTTP management port.
- Use access control lists to restrict management interface reachability to a small set of administrative IP addresses.
- Consider replacing end-of-support Tenda FH1202 devices if no firmware fix is issued.
# Example: block external access to the router management interface
# Adjust MGMT_IP and ADMIN_SUBNET to match your environment
iptables -A INPUT -p tcp --dport 80 -s <ADMIN_SUBNET> -d <MGMT_IP> -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -d <MGMT_IP> -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
