CVE-2025-60663
📋 TL;DR
This CVE describes a stack overflow vulnerability in Tenda AC18 routers that allows remote attackers to execute arbitrary code or cause denial of service. Attackers can exploit this by sending specially crafted requests to the vulnerable wanMTU parameter. Users of affected Tenda AC18 routers with the vulnerable firmware version are at risk.
💻 Affected Systems
- Tenda AC18
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete device compromise, network infiltration, and persistent backdoor installation.
Likely Case
Denial of service causing router crashes and network disruption, potentially requiring physical reset.
If Mitigated
Limited impact if network segmentation isolates the router and external access is restricted.
🎯 Exploit Status
The vulnerability is in a web management interface parameter and requires no authentication. The provided reference appears to contain exploit 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 AC18. 3. Access router admin interface. 4. Navigate to firmware upgrade section. 5. Upload and install the new firmware. 6. Reboot the router.
🔧 Temporary Workarounds
Disable remote management
allPrevent external access to the router's web interface
Access router admin interface -> Advanced Settings -> Remote Management -> Disable
Network segmentation
allIsolate the router from critical internal networks
🧯 If You Can't Patch
- Replace the router with a different model that doesn't have this vulnerability
- Implement strict firewall rules to block all external access to the router's management interface
🔍 How to Verify
Check if Vulnerable:
Access router admin interface -> System Status -> Firmware Version, check if version is V15.03.05.19Check Version:
curl -s http://router-ip/goform/getStatus | grep versionVerify Fix Applied:
After firmware update, verify the version is newer than V15.03.05.19📡 Detection & Monitoring
Log Indicators:
- Multiple POST requests to /goform/advSetMacMtuWan with large wanMTU values
- Router crash/reboot logs
- Unusual traffic patterns to router management interface
Network Indicators:
- HTTP POST requests to /goform/advSetMacMtuWan with abnormally large parameter values
- Sudden loss of connectivity to the router
SIEM Query:
source="router_logs" AND (uri_path="/goform/advSetMacMtuWan" AND parameter_size>1000) OR event="router_reboot"