CVE-2025-7092
📋 TL;DR
A critical stack-based buffer overflow vulnerability in Belkin F9K1122 routers allows remote attackers to execute arbitrary code by manipulating the wps_enrolee_pin/webpage parameter. This affects users of Belkin F9K1122 routers running firmware version 1.00.33. The vulnerability is remotely exploitable without authentication.
💻 Affected Systems
- Belkin F9K1122
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete device compromise, network infiltration, and persistent backdoor installation.
Likely Case
Router takeover enabling traffic interception, credential theft, and lateral movement into connected networks.
If Mitigated
Denial of service or limited information disclosure if exploit fails or is partially mitigated.
🎯 Exploit Status
Public proof-of-concept available; vendor unresponsive; remote exploitation without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: Yes
Instructions:
No official patch available. Check Belkin website for firmware updates. If update exists: 1. Download firmware from Belkin support site. 2. Access router admin interface. 3. Navigate to firmware update section. 4. Upload and apply new firmware. 5. Reboot router.
🔧 Temporary Workarounds
Disable WPS and web interface access
allDisable WPS functionality and restrict access to router web interface
Access router admin interface > Wireless settings > Disable WPS
Firewall rules to block external access to router web ports (typically 80/443)
Network segmentation and access control
allIsolate router management interface and restrict access
Create separate VLAN for router management
Implement ACLs to restrict access to router IP from trusted networks only
🧯 If You Can't Patch
- Replace affected routers with supported models from different vendors
- Implement network monitoring and intrusion detection for exploit attempts
🔍 How to Verify
Check if Vulnerable:
Check router firmware version via admin interface or command: telnet [router_ip] (if enabled) and check versionCheck Version:
Access router web interface at http://[router_ip] and check firmware version in admin sectionVerify Fix Applied:
Verify firmware version is no longer 1.00.33; test WPS functionality is disabled or patched📡 Detection & Monitoring
Log Indicators:
- Multiple failed WPS connection attempts
- Unusual POST requests to /goform/formWlanSetupWPS
- Buffer overflow patterns in web server logs
Network Indicators:
- Exploit traffic patterns to router web interface
- Unusual outbound connections from router after compromise
SIEM Query:
source="router_logs" AND (uri="/goform/formWlanSetupWPS" OR message="*buffer overflow*")