CVE-2025-14092
📋 TL;DR
This CVE describes an OS command injection vulnerability in Edimax BR-6478AC V3 routers. Attackers can remotely execute arbitrary commands by manipulating the 'host' parameter in the diagnostic function. All users of the affected router version are vulnerable to this attack.
💻 Affected Systems
- Edimax BR-6478AC V3
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full router compromise allowing attacker to install persistent backdoors, intercept all network traffic, pivot to internal networks, and brick the device.
Likely Case
Router takeover enabling network traffic monitoring, DNS hijacking, credential theft, and launching attacks against internal devices.
If Mitigated
Limited impact if router is behind firewall with restricted WAN access, though internal attackers could still exploit.
🎯 Exploit Status
Public exploit code available on GitHub. Attack requires no authentication and uses simple command injection techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: Yes
Instructions:
No official patch available. Vendor has not responded to disclosure. Consider replacing router if no firmware update becomes available.
🔧 Temporary Workarounds
Disable remote administration
allTurn off remote management/administration features to prevent external exploitation
Access router admin panel → Advanced Settings → Remote Management → Disable
Network segmentation
allIsolate router management interface to separate VLAN
🧯 If You Can't Patch
- Replace router with different model from vendor with better security track record
- Place router behind dedicated firewall with strict inbound/outbound rules
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in admin panel. If version is 1.0.15, device is vulnerable.Check Version:
Login to router admin panel and check System Status or Firmware Information pageVerify Fix Applied:
No fix available to verify. Monitor vendor website for firmware updates.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /boafrm/formDebugDiagnosticRun
- Suspicious command strings in diagnostic logs
- Multiple failed diagnostic attempts
Network Indicators:
- Unusual outbound connections from router
- DNS queries to suspicious domains from router
- Unexpected SSH/Telnet connections originating from router
SIEM Query:
source="router_logs" AND (uri="/boafrm/formDebugDiagnosticRun" OR message="diagnostic" AND (message="|" OR message="$" OR message="`"))