CVE-2025-57061
📋 TL;DR
This vulnerability in Tenda G3 routers allows attackers to trigger stack overflows via specially crafted requests to the formIPMacBindModify function. Attackers can cause Denial of Service (DoS) by crashing the device, affecting all users of vulnerable Tenda G3 routers running the specified firmware version.
💻 Affected Systems
- Tenda G3
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device crash requiring physical reboot, potential for remote code execution if stack overflow can be controlled to execute arbitrary code
Likely Case
Router becomes unresponsive, requiring manual reboot to restore functionality, disrupting network connectivity
If Mitigated
No impact if device is patched or network access is properly restricted
🎯 Exploit Status
The vulnerability is in a web interface function and requires sending crafted HTTP requests. Public GitHub references provide technical details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: Yes
Instructions:
1. Check Tenda's official website for firmware updates
2. Download the latest firmware for G3 model
3. Access router web interface (typically 192.168.0.1)
4. Navigate to System Tools > Firmware Upgrade
5. Upload and install the new firmware
6. Reboot the router after installation
🔧 Temporary Workarounds
Disable Remote Management
allPrevent external access to router management interface
Restrict Management Access
allLimit management interface access to trusted IP addresses only
🧯 If You Can't Patch
- Isolate router on separate VLAN with strict access controls
- Implement network monitoring for abnormal HTTP requests to router management interface
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in web interface under System Status or System ToolsCheck Version:
No CLI command - check via web interface at http://router-ip (typically 192.168.0.1)Verify Fix Applied:
Verify firmware version has been updated to a version newer than v3.0br_V15.11.0.17📡 Detection & Monitoring
Log Indicators:
- Multiple failed HTTP requests to formIPMacBindModify endpoint
- Router crash/reboot events in system logs
Network Indicators:
- Unusual HTTP POST requests to router management interface with long parameter values
- Sudden loss of connectivity to router
SIEM Query:
source="router_logs" AND (uri="*/goform/formIPMacBindModify" OR message="*crash*" OR message="*reboot*")