CVE-2025-10964
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary commands on Wavlink NU516U1 devices by exploiting a command injection flaw in the firewall.cgi component. Attackers can manipulate the remoteManagementEnabled parameter to inject malicious commands. All users of affected Wavlink NU516U1 devices are at risk.
💻 Affected Systems
- Wavlink NU516U1
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attackers to install persistent backdoors, pivot to internal networks, or use the device for botnet activities.
Likely Case
Unauthorized command execution leading to device configuration changes, data exfiltration, or denial of service.
If Mitigated
Limited impact if devices are behind firewalls with strict inbound filtering and command injection protections are implemented.
🎯 Exploit Status
Proof of concept available on GitHub, requires network access to device's web interface.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: UNKNOWN
Vendor Advisory: NONE
Restart Required: No
Instructions:
No official patch available. Vendor did not respond to disclosure. Consider replacing device or implementing strict network controls.
🔧 Temporary Workarounds
Network Segmentation
allIsolate Wavlink devices in separate VLAN with strict firewall rules blocking external access to management interfaces.
Access Control Lists
allImplement ACLs to restrict access to device management interface to trusted IP addresses only.
🧯 If You Can't Patch
- Disable remote management features completely if not required
- Replace vulnerable devices with supported alternatives from responsive vendors
🔍 How to Verify
Check if Vulnerable:
Check device model and firmware version. If using Wavlink NU516U1 with unpatched firmware, assume vulnerable.Check Version:
Check device web interface or console for firmware version information.Verify Fix Applied:
No verification possible as vendor has not provided patch. Consider device replacement.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /cgi-bin/firewall.cgi with command injection patterns
- Unexpected system command execution in device logs
Network Indicators:
- HTTP requests to device management interface from unexpected sources
- Outbound connections from device to suspicious IPs
SIEM Query:
source="wavlink_device" AND (url="/cgi-bin/firewall.cgi" AND (param="remoteManagementEnabled" AND value CONTAINS "|" OR value CONTAINS ";" OR value CONTAINS "`"))🔗 References
- https://github.com/panda666-888/vuls/blob/main/wavlink/nu516u1/websSysFirewall.md
- https://github.com/panda666-888/vuls/blob/main/wavlink/nu516u1/websSysFirewall.md#poc
- https://vuldb.com/?ctiid.325832
- https://vuldb.com/?id.325832
- https://vuldb.com/?submit.652785
- https://github.com/panda666-888/vuls/blob/main/wavlink/nu516u1/websSysFirewall.md
- https://github.com/panda666-888/vuls/blob/main/wavlink/nu516u1/websSysFirewall.md#poc
