CVE-2025-57215
📋 TL;DR
A stack-based buffer overflow vulnerability exists in Tenda AC10 routers running firmware v16.03.10.20. Attackers can exploit this via the get_parentControl_list_Info function to potentially execute arbitrary code or crash the device. This affects users of Tenda AC10 v4.0 hardware with the vulnerable firmware.
💻 Affected Systems
- Tenda AC10
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete device compromise, allowing attackers to intercept traffic, modify configurations, or use the router as a pivot point into internal networks.
Likely Case
Device crash causing denial of service, requiring physical reset or firmware reflash to restore functionality.
If Mitigated
Limited impact if the vulnerable interface is not exposed to untrusted networks and proper network segmentation is in place.
🎯 Exploit Status
The vulnerability is in a web management interface function and appears to be remotely exploitable without authentication based on the available technical details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.tenda.com.cn
Restart Required: Yes
Instructions:
1. Check Tenda's official website for firmware updates. 2. Download the latest firmware for AC10 v4.0. 3. Access router web interface. 4. Navigate to System Tools > Firmware Upgrade. 5. Upload and install the new firmware. 6. Wait for automatic reboot.
🔧 Temporary Workarounds
Disable Remote Management
allPrevent external access to the vulnerable web interface
Network Segmentation
allIsolate the router from untrusted networks
🧯 If You Can't Patch
- Replace the router with a different model that receives security updates
- Implement strict firewall rules to block all external access to the router's management interface
🔍 How to Verify
Check if Vulnerable:
Access router web interface, navigate to System Tools > System Status, check firmware version matches v16.03.10.20Check Version:
curl -s http://router-ip/goform/getStatus | grep versionVerify Fix Applied:
After firmware update, verify the version number has changed from v16.03.10.20📡 Detection & Monitoring
Log Indicators:
- Repeated connection attempts to /goform/get_parentControl_list_Info
- Device crash/reboot logs
- Unusual POST requests with long deviceId parameters
Network Indicators:
- HTTP POST requests to router IP with oversized deviceId parameter
- Traffic patterns suggesting buffer overflow exploitation
SIEM Query:
source="router_logs" AND (uri="/goform/get_parentControl_list_Info" OR message="crash" OR message="reboot")