CVE-2025-46414
📋 TL;DR
This vulnerability allows attackers to brute-force PIN codes for registered products when they have a valid device serial number, potentially gaining unauthorized access. The API provides clear feedback on incorrect attempts, making brute-forcing easier. This affects users of EG4 Electronics products that use PIN authentication.
💻 Affected Systems
- EG4 Electronics products with PIN authentication
⚠️ 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 compromise of all user accounts and devices through automated brute-force attacks, leading to data theft, device takeover, and potential supply chain attacks.
Likely Case
Targeted attacks against specific users or devices to gain unauthorized access, potentially leading to data exposure or device manipulation.
If Mitigated
Limited impact with proper rate limiting and monitoring in place, though still vulnerable to determined attackers with valid serial numbers.
🎯 Exploit Status
Exploitation requires valid device serial number but is otherwise straightforward with automated tools
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Server-side update deployed April 6, 2025
Vendor Advisory: https://eg4electronics.com/contact/
Restart Required: No
Instructions:
1. Contact EG4 Electronics support to confirm server-side patch is applied
2. No client-side update required as this is a server-side fix
3. Verify API now implements rate limiting on PIN attempts
🔧 Temporary Workarounds
Implement network-level rate limiting
allUse WAF or network firewall to limit PIN attempt requests per IP
Monitor for brute-force attempts
allSet up alerts for multiple failed PIN attempts from same source
🧯 If You Can't Patch
- Implement strong PIN policies (minimum length, complexity requirements)
- Monitor authentication logs for suspicious patterns and block offending IPs
🔍 How to Verify
Check if Vulnerable:
Test PIN authentication endpoint - if unlimited attempts are allowed without lockout, system is vulnerableCheck Version:
Contact EG4 Electronics support as this is server-sideVerify Fix Applied:
Attempt multiple incorrect PIN entries - system should implement rate limiting or account lockout after threshold📡 Detection & Monitoring
Log Indicators:
- Multiple failed PIN authentication attempts from same source
- Successful authentication after many failed attempts
Network Indicators:
- High volume of POST requests to PIN authentication endpoint
- Pattern of sequential PIN attempts
SIEM Query:
source_ip=* AND (event_type="PIN_AUTH_FAILURE" OR uri_path="/api/pin/authenticate") | stats count by source_ip | where count > 10