CVE-2026-27519
📋 TL;DR
This vulnerability in Binardat 10G08-0800GSM network switches allows attackers to decrypt protected data due to the use of RC4 encryption with a hard-coded key embedded in client-side JavaScript. Anyone using firmware version V300SP10260209 or earlier is affected, potentially exposing sensitive network configuration and management data.
💻 Affected Systems
- Binardat 10G08-0800GSM network switch
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of encrypted configuration data, credentials, and management traffic, allowing attackers to reconfigure switches, intercept traffic, or disrupt network operations.
Likely Case
Exposure of sensitive configuration data and management credentials, potentially leading to unauthorized network access or configuration changes.
If Mitigated
Limited exposure if switches are isolated from untrusted networks and management interfaces are properly secured.
🎯 Exploit Status
Exploitation requires network access to the switch's management interface but no authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: Yes
Instructions:
1. Check Binardat website for firmware updates
2. Download latest firmware if available
3. Upload firmware to switch via web interface
4. Reboot switch after update
🔧 Temporary Workarounds
Isolate management interface
allRestrict access to switch management interface to trusted networks only
Configure ACLs to restrict management access
Disable web management
allUse CLI management only if web interface not required
disable web-management via CLI
🧯 If You Can't Patch
- Segment switches on isolated management VLAN
- Implement network monitoring for unusual management traffic
🔍 How to Verify
Check if Vulnerable:
Check firmware version via web interface or CLI: show versionCheck Version:
show versionVerify Fix Applied:
Verify firmware version is newer than V300SP10260209📡 Detection & Monitoring
Log Indicators:
- Multiple failed decryption attempts
- Unusual management interface access patterns
Network Indicators:
- Unusual traffic to switch management ports
- RC4 encryption patterns in network traffic
SIEM Query:
source_ip=switch_management_interface AND (protocol=HTTP OR protocol=HTTPS) AND bytes_transferred>threshold