CVE-2025-45343
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code on Tenda W18E routers by exploiting improper access control in the account module's editing functionality. Attackers can compromise the router's firmware and potentially gain full control of the device. All users running the affected firmware version are at risk.
💻 Affected Systems
- Tenda W18E
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete router compromise leading to persistent backdoor installation, network traffic interception, credential theft, and lateral movement to connected devices.
Likely Case
Router takeover allowing DNS hijacking, network monitoring, and use as a pivot point for further attacks.
If Mitigated
Limited impact if router is behind firewall with restricted WAN access and strong network segmentation.
🎯 Exploit Status
Exploit requires authentication but may be combined with default credentials or other vulnerabilities.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.tenda.com.cn/
Restart Required: Yes
Instructions:
1. Check Tenda website for firmware updates. 2. Download latest firmware. 3. Access router admin panel. 4. Navigate to System Tools > Firmware Upgrade. 5. Upload and install new firmware. 6. Reboot router.
🔧 Temporary Workarounds
Disable Remote Management
allPrevent external access to router management interface
Access router admin panel > System Tools > Remote Management > Disable
Change Default Credentials
allUse strong, unique credentials for router admin access
Access router admin panel > System Tools > Modify Login Password
🧯 If You Can't Patch
- Isolate router on separate VLAN with strict firewall rules
- Implement network monitoring for suspicious traffic to/from router
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in admin panel under System StatusCheck Version:
curl -s http://router-ip/goform/getStatus | grep versionVerify Fix Applied:
Verify firmware version is newer than 16.01.0.11📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /goform/setmodules
- Multiple failed login attempts followed by successful login
Network Indicators:
- Unexpected outbound connections from router
- DNS queries to suspicious domains
SIEM Query:
source="router_logs" AND (uri="/goform/setmodules" OR uri="/goform/getStatus")