CVE-2026-27521
📋 TL;DR
This vulnerability in Binardat 10G08-0800GSM network switches allows attackers to perform brute-force attacks against login credentials due to missing rate limiting and account lockout mechanisms. Organizations using affected firmware versions are at risk of unauthorized access to their network infrastructure.
💻 Affected Systems
- Binardat 10G08-0800GSM network switch
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of network switch leading to network segmentation bypass, traffic interception, or denial of service attacks.
Likely Case
Unauthorized administrative access to network switch configuration and management interface.
If Mitigated
Minimal impact with proper network segmentation and monitoring in place.
🎯 Exploit Status
Simple brute-force tools can exploit this vulnerability without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Monitor vendor website for firmware updates.
🔧 Temporary Workarounds
Network Segmentation
allRestrict access to switch management interface to trusted networks only
Strong Password Policy
allImplement complex, unique passwords for all switch accounts
🧯 If You Can't Patch
- Implement network-based rate limiting using firewall or IPS devices
- Deploy network monitoring to detect brute-force attempts
🔍 How to Verify
Check if Vulnerable:
Check firmware version via switch web interface or CLI. If version is V300SP10260209 or earlier, device is vulnerable.Check Version:
show version (CLI) or check System Information in web interfaceVerify Fix Applied:
Test login attempts - if multiple failed logins don't trigger lockout or delay, vulnerability exists.📡 Detection & Monitoring
Log Indicators:
- Multiple failed login attempts from single IP
- Successful login after many failures
Network Indicators:
- High volume of HTTP/HTTPS POST requests to login endpoint
- Traffic patterns consistent with brute-force tools
SIEM Query:
source="switch_logs" AND event="login_failed" | stats count by src_ip | where count > 10