CVE-2025-63362
📋 TL;DR
This vulnerability allows attackers to set blank administrator credentials on Waveshare serial-to-Ethernet/Wi-Fi gateways, enabling complete authentication bypass. Attackers can gain administrative control of affected devices, potentially compromising connected industrial or IoT systems. Organizations using these gateways in operational technology or industrial control environments are at risk.
💻 Affected Systems
- Waveshare RS232/485 TO WIFI ETH (B) Serial to Ethernet/Wi-Fi Gateway
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device takeover allowing attackers to reconfigure network settings, intercept serial communications, install malware, pivot to connected industrial systems, and disrupt critical operations.
Likely Case
Unauthorized administrative access leading to configuration changes, data interception, and potential lateral movement to connected systems.
If Mitigated
Limited impact if devices are isolated in segmented networks with strict access controls and monitoring.
🎯 Exploit Status
Public proof-of-concept exists in referenced GitHub repository; exploitation requires only web access to device interface.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None known
Restart Required: No
Instructions:
No official patch available. Monitor vendor website for firmware updates.
🔧 Temporary Workarounds
Network Segmentation
allIsolate affected devices in dedicated VLANs with strict firewall rules
Access Control Lists
allRestrict web interface access to trusted IP addresses only
🧯 If You Can't Patch
- Remove devices from internet-facing networks immediately
- Implement network monitoring for authentication attempts and configuration changes
🔍 How to Verify
Check if Vulnerable:
Attempt to set blank administrator credentials via web interface; if successful, device is vulnerable.Check Version:
Check device web interface for firmware version informationVerify Fix Applied:
Test if blank credentials can still be set after applying any vendor updates.📡 Detection & Monitoring
Log Indicators:
- Unusual authentication events
- Configuration changes from unexpected sources
- Multiple failed login attempts followed by successful login
Network Indicators:
- HTTP requests to admin credential endpoints
- Unusual traffic patterns from gateway devices
SIEM Query:
source="gateway" AND (event_type="auth" OR event_type="config_change") AND result="success"