CVE-2026-2616
📋 TL;DR
This vulnerability involves hard-coded credentials in the web management interface of Beetel 777VR1 routers. Attackers on the local network can exploit these credentials to gain unauthorized access to the router's administrative interface. All users of affected router versions are at risk.
💻 Affected Systems
- Beetel 777VR1
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of router configuration, enabling traffic interception, network redirection, or disabling of security features.
Likely Case
Unauthorized administrative access allowing configuration changes, network monitoring, or service disruption.
If Mitigated
Limited to no impact if proper network segmentation and access controls prevent local network access.
🎯 Exploit Status
Exploit details and reproduction steps are publicly available, making exploitation trivial for attackers with local network access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Vendor has not responded to disclosure. Consider upgrading to newer router models if available.
🔧 Temporary Workarounds
Change Default Credentials
allManually change all administrative credentials on the router if possible
Disable Web Management Interface
allDisable the vulnerable web interface if not required for operations
🧯 If You Can't Patch
- Segment affected routers on isolated VLANs to limit attack surface
- Implement strict network access controls to prevent unauthorized local network access
🔍 How to Verify
Check if Vulnerable:
Check router firmware version via web interface or console. If version is 01.00.09 or earlier, the device is vulnerable.Check Version:
Check via router web interface at http://router-ip/ or console connectionVerify Fix Applied:
Attempt to authenticate with known hard-coded credentials. If authentication fails, credentials may have been changed.📡 Detection & Monitoring
Log Indicators:
- Multiple failed login attempts followed by successful login
- Administrative configuration changes from unexpected IP addresses
Network Indicators:
- Unusual administrative access patterns
- Traffic to router management interface from unauthorized sources
SIEM Query:
source_ip IN (local_network) AND destination_port=80 AND http_method=POST AND uri CONTAINS '/login' AND response_code=200