CVE-2025-15461
📋 TL;DR
This vulnerability is a buffer overflow in the UTT 进取 520W router firmware version 1.7.7-180627, specifically in the strcpy function handling the selDateType parameter. Attackers can remotely exploit this to execute arbitrary code or crash the device. Organizations using this specific router model with the vulnerable firmware are affected.
💻 Affected Systems
- UTT 进取 520W router
📦 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
Device crash causing denial of service, or limited code execution allowing network reconnaissance.
If Mitigated
Minimal impact if device is behind firewalls with strict inbound filtering and network segmentation.
🎯 Exploit Status
Proof-of-concept exploit is publicly available on GitHub. The vulnerability requires no authentication and has straightforward exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available - vendor did not respond to disclosure
Restart Required: Yes
Instructions:
No official patch available. Consider replacing the device with a supported alternative.
🔧 Temporary Workarounds
Network Access Control
linuxRestrict network access to the router's management interface
iptables -A INPUT -p tcp --dport 80 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
Disable Remote Management
allTurn off remote administration features if enabled
🧯 If You Can't Patch
- Isolate the device in a dedicated VLAN with strict firewall rules
- Implement network monitoring and intrusion detection for exploit attempts
🔍 How to Verify
Check if Vulnerable:
Check router web interface or CLI for firmware version 1.7.7-180627Check Version:
Check web interface at http://router-ip/ or use telnet/ssh if availableVerify Fix Applied:
Verify firmware version has changed from 1.7.7-180627📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /goform/formTaskEdit with long selDateType parameters
- Device crash/reboot logs
Network Indicators:
- HTTP requests with abnormally long parameter values targeting the vulnerable endpoint
- Traffic patterns matching known exploit code
SIEM Query:
http.url:"/goform/formTaskEdit" AND http.param:"selDateType" AND bytes > 1000