CVE-2026-0581
📋 TL;DR
This CVE describes a command injection vulnerability in Tenda AC1206 routers that allows remote attackers to execute arbitrary commands on affected devices. Attackers can exploit the vulnerability by manipulating parameters in HTTP requests to the router's web interface. Users with Tenda AC1206 routers running vulnerable firmware are affected.
💻 Affected Systems
- Tenda AC1206
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the router allowing attackers to install persistent backdoors, intercept network traffic, pivot to internal networks, or use the device for botnet activities.
Likely Case
Router compromise leading to network traffic interception, DNS hijacking, credential theft, and potential lateral movement to connected devices.
If Mitigated
Limited impact if router is behind firewall with restricted WAN access, though internal threats remain possible.
🎯 Exploit Status
Exploit details are publicly available on GitHub. The vulnerability can be exploited remotely without authentication via HTTP requests.
🛠️ 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 for AC1206
3. Access router admin interface
4. Navigate to firmware upgrade section
5. Upload and apply new firmware
6. Reboot router after update
🔧 Temporary Workarounds
Disable Remote Management
allPrevent external access to router web interface
Network Segmentation
allIsolate router management interface from untrusted networks
🧯 If You Can't Patch
- Replace affected router with different model/brand
- Implement strict firewall rules to block all external access to router management interface (ports 80/443)
🔍 How to Verify
Check if Vulnerable:
Check router firmware version via admin interface or using nmap/curl to identify versionCheck Version:
curl -s http://router-ip/ | grep -i version OR check router admin interface System StatusVerify Fix Applied:
Verify firmware version has been updated to newer than 15.03.06.23📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP POST requests to /goform/BehaviorManager
- Suspicious command execution in router logs
- Multiple failed login attempts followed by successful access
Network Indicators:
- Unusual outbound connections from router
- DNS queries to suspicious domains
- Unexpected port scans originating from router
SIEM Query:
source="router_logs" AND (uri="/goform/BehaviorManager" OR command="*;*" OR command="*|*")