CVE-2026-2135
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary commands on UTT HiPER 810 routers by injecting malicious input into the policyNames parameter. Attackers can gain control of affected devices without authentication. Organizations using UTT HiPER 810 routers with vulnerable firmware are at risk.
💻 Affected Systems
- UTT HiPER 810
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing persistent backdoor installation, network traffic interception, lateral movement to internal networks, and use in botnets.
Likely Case
Router takeover leading to network disruption, credential theft from passing traffic, and deployment of malware to connected devices.
If Mitigated
Limited impact if network segmentation isolates routers and strict egress filtering prevents command-and-control communication.
🎯 Exploit Status
Public exploit code exists, making attacks trivial for attackers with basic skills.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None found
Restart Required: Yes
Instructions:
1. Check vendor website for firmware updates
2. Download latest firmware
3. Backup configuration
4. Upload firmware via web interface
5. Reboot router
6. Restore configuration if needed
🔧 Temporary Workarounds
Network Segmentation
allIsolate routers from critical networks and restrict access to management interfaces
Access Control Lists
linuxBlock external access to router management interface
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -j DROP
🧯 If You Can't Patch
- Replace vulnerable devices with supported models
- Implement strict network monitoring for unusual router traffic patterns
🔍 How to Verify
Check if Vulnerable:
Check firmware version in router web interface under System Status or via SSH: cat /proc/versionCheck Version:
cat /proc/version || show versionVerify Fix Applied:
Verify firmware version is newer than 1.7.4-141218📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /goform/formPdbUpConfig
- Suspicious command execution in system logs
Network Indicators:
- Unexpected outbound connections from router
- Traffic to known malicious IPs from router
SIEM Query:
source="router.log" AND (uri="/goform/formPdbUpConfig" OR "policyNames" AND ("wget" OR "curl" OR "/bin/sh"))