CVE-2025-9379
📋 TL;DR
The Belkin AX1800 router firmware update handler has insufficient verification of data authenticity, allowing attackers to remotely deliver malicious firmware updates. This affects Belkin AX1800 router users running firmware version 1.1.00.016. Attackers could potentially compromise the router's functionality or gain persistent access.
💻 Affected Systems
- Belkin AX1800 Router
⚠️ 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 router compromise allowing persistent backdoor installation, traffic interception, credential theft, and lateral movement to connected devices.
Likely Case
Router compromise leading to network disruption, DNS hijacking, or credential harvesting from connected devices.
If Mitigated
Limited impact if firmware updates are disabled and network segmentation isolates the router.
🎯 Exploit Status
Public GitHub repository contains technical details. Remote exploitation without authentication makes weaponization likely.
🛠️ 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. Monitor Belkin security advisories for updates.
🔧 Temporary Workarounds
Disable Automatic Firmware Updates
allPrevent automatic firmware updates that could be maliciously triggered
Access router admin interface > Advanced Settings > Firmware Update > Disable automatic updates
Network Segmentation
allIsolate router management interface from untrusted networks
Configure firewall rules to restrict access to router admin interface (typically port 80/443)
🧯 If You Can't Patch
- Replace affected router with a different model that receives security updates
- Implement strict network monitoring for unusual firmware update attempts
🔍 How to Verify
Check if Vulnerable:
Access router admin interface and check firmware version. If version is 1.1.00.016, device is vulnerable.Check Version:
curl -s http://router-ip/firmware-version or check router admin web interfaceVerify Fix Applied:
Check if firmware version has been updated beyond 1.1.00.016. No official fix available to verify.📡 Detection & Monitoring
Log Indicators:
- Unexpected firmware update attempts
- Unauthorized firmware version changes
- Failed firmware update attempts from unknown sources
Network Indicators:
- Unusual HTTP/HTTPS traffic to router firmware update endpoints
- Firmware download from non-Belkin sources
SIEM Query:
source="router_logs" AND (event="firmware_update" OR event="firmware_download") AND NOT src_ip IN [trusted_ips]