CVE-2025-15044
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code on Tenda WH450 routers by exploiting a stack-based buffer overflow in the NatStaticSetting function. Attackers can send specially crafted requests to the /goform/NatStaticSetting endpoint to potentially gain full control of affected devices. All users running Tenda WH450 version 1.0.0.18 are affected.
💻 Affected Systems
- Tenda WH450
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise leading to persistent backdoor installation, network traffic interception, lateral movement to other devices, and botnet recruitment.
Likely Case
Remote code execution allowing attackers to modify router settings, intercept traffic, or use the device as a pivot point for further attacks.
If Mitigated
Limited impact if devices are behind firewalls with strict inbound filtering and network segmentation.
🎯 Exploit Status
Public proof-of-concept code exists in GitHub repositories, making exploitation straightforward for attackers with basic skills.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: Yes
Instructions:
1. Check Tenda's official website for firmware updates. 2. If available, download the latest firmware. 3. Log into router admin interface. 4. Navigate to firmware upgrade section. 5. Upload and apply the new firmware. 6. Reboot the router.
🔧 Temporary Workarounds
Disable Remote Management
allPrevent external access to the vulnerable web interface
Login to router admin → System Tools → Remote Management → Disable
Network Segmentation
allIsolate router management interface from untrusted networks
Configure firewall rules to block inbound traffic to port 80/443 from external networks
🧯 If You Can't Patch
- Replace affected devices with patched or alternative models
- Implement strict network access controls to limit exposure of management interfaces
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in admin interface under System Status or About pageCheck Version:
curl -s http://router-ip/goform/getStatus | grep versionVerify Fix Applied:
Verify firmware version is no longer 1.0.0.18 after update📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /goform/NatStaticSetting with long parameter values
- Multiple failed login attempts followed by buffer overflow patterns
Network Indicators:
- Unusual outbound connections from router to unknown IPs
- Traffic patterns suggesting command and control communication
SIEM Query:
source="router_logs" AND uri="/goform/NatStaticSetting" AND (content_length>1000 OR contains(param,"page="))🔗 References
- https://github.com/z472421519/BinaryAudit/blob/main/PoC/BOF/Tenda_WH450/NatStaticSetting/NatStaticSetting.md
- https://github.com/z472421519/BinaryAudit/blob/main/PoC/BOF/Tenda_WH450/NatStaticSetting/NatStaticSetting.md#reproduce
- https://vuldb.com/?ctiid.337849
- https://vuldb.com/?id.337849
- https://vuldb.com/?submit.720856
- https://www.tenda.com.cn/
