CVE-2025-10392
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code on Mercury KM08-708H GiGA WiFi Wave2 routers by sending specially crafted HTTP requests with manipulated Host headers, causing a stack-based buffer overflow. It affects all systems running the vulnerable firmware version. Attackers can exploit this without authentication to potentially take full control of affected devices.
💻 Affected Systems
- Mercury KM08-708H GiGA WiFi Wave2
⚠️ 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
Remote code execution leading to complete device compromise, lateral movement to internal networks, persistent backdoor installation, and botnet recruitment.
Likely Case
Remote code execution allowing attackers to modify router settings, intercept network traffic, or use the device as a pivot point for further attacks.
If Mitigated
Limited impact if devices are behind firewalls with strict ingress filtering or in isolated network segments.
🎯 Exploit Status
Public exploit details are available in the GitHub repository. The vulnerability requires minimal technical skill to exploit due to the public proof-of-concept.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: Yes
Instructions:
1. Check vendor website for firmware updates
2. Download latest firmware if available
3. Upload firmware through router web interface
4. Reboot router after update
🔧 Temporary Workarounds
Disable Remote Management
allDisable HTTP/HTTPS management from WAN interface
Network Segmentation
allPlace routers in isolated VLAN with strict firewall rules
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure to management interfaces
- Monitor for suspicious HTTP requests to router management interface
🔍 How to Verify
Check if Vulnerable:
Check firmware version in router web interface under System Status or Administration sectionCheck Version:
Check via web interface or SSH if enabled: cat /etc/version or similarVerify Fix Applied:
Verify firmware version has been updated to a version later than 1.1.14📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP requests with long Host headers
- Multiple failed login attempts followed by buffer overflow patterns
Network Indicators:
- HTTP requests with abnormally long Host headers to router management port
- Traffic patterns suggesting exploit delivery
SIEM Query:
http.url:* AND http.host:* AND (http.host.length > 100) AND dst.port:80 OR dst.port:443 AND dst.ip:[router_ip]