CVE-2025-22936
📋 TL;DR
This vulnerability allows remote attackers to obtain the default WiFi password on affected Smartcom Bulgaria routers due to a weak password generation algorithm. Attackers can potentially gain unauthorized network access. Affected users are those using SAM-4G1G-TT-W-VC and SAM-4F1F-TT-W-A1 routers with default configurations.
💻 Affected Systems
- Smartcom Bulgaria AD Smartcom Ralink CPE/WiFi router SAM-4G1G-TT-W-VC
- Smartcom Bulgaria AD Smartcom Ralink CPE/WiFi router SAM-4F1F-TT-W-A1
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete network compromise allowing attackers to intercept all traffic, deploy malware, and pivot to other connected devices.
Likely Case
Unauthorized network access leading to bandwidth theft, network reconnaissance, and potential man-in-the-middle attacks.
If Mitigated
Limited impact if strong custom passwords are already configured and network segmentation is implemented.
🎯 Exploit Status
The advisory includes details about the weak algorithm, making exploitation straightforward for attackers with basic skills.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: http://smartcom.com
Restart Required: No
Instructions:
1. Log into router admin interface
2. Navigate to Wireless/WiFi settings
3. Change WiFi password to a strong, unique password
4. Save configuration changes
🔧 Temporary Workarounds
Change Default WiFi Password
allReplace the default WiFi password with a strong, unique password using WPA2/WPA3 encryption.
Disable WPS
allDisable WiFi Protected Setup (WPS) to prevent alternative attack vectors.
🧯 If You Can't Patch
- Implement network segmentation to isolate the router from critical systems
- Deploy network monitoring to detect unauthorized access attempts
🔍 How to Verify
Check if Vulnerable:
Check if your router is using the default WiFi password by attempting to connect with passwords generated from the weak algorithm described in the advisory.Check Version:
Check router web interface or use nmap/router scanning tools to identify device modelVerify Fix Applied:
Verify that WiFi password has been changed to a strong, unique password not following the predictable pattern.📡 Detection & Monitoring
Log Indicators:
- Multiple failed authentication attempts followed by successful WiFi connection
- Unusual MAC addresses connecting to WiFi
Network Indicators:
- Unexpected devices on wireless network
- Unusual traffic patterns from wireless segment
SIEM Query:
Wireless authentication logs showing pattern of default password exploitation