CVE-2025-10960

6.3 MEDIUM

📋 TL;DR

This vulnerability allows remote attackers to execute arbitrary commands on Wavlink NU516U1 routers by injecting malicious input into the DeleteMac page's delete_list parameter. Attackers can exploit this without authentication to gain control of affected devices. All users running the vulnerable firmware version are at risk.

💻 Affected Systems

Products:
  • Wavlink NU516U1
Versions: M16U1_V240425
Operating Systems: Embedded Linux firmware
Default Config Vulnerable: ⚠️ Yes
Notes: Affects the web management interface accessible via HTTP/HTTPS. No special configuration required for exploitation.

📦 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

Attackers gain shell access to execute commands, potentially stealing credentials, modifying configurations, or disrupting network services.

🟢

If Mitigated

With proper network segmentation and access controls, impact is limited to the isolated device without lateral movement.

🌐 Internet-Facing: HIGH - The vulnerability is remotely exploitable and affects internet-facing router interfaces.
🏢 Internal Only: MEDIUM - Internal attackers could exploit this if they have network access to the management interface.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Proof-of-concept exploit code is publicly available on GitHub. Attack requires network access to the management interface.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not available

Vendor Advisory: None - vendor did not respond to disclosure

Restart Required: No

Instructions:

No official patch available. Consider workarounds or replacement.

🔧 Temporary Workarounds

Disable remote management

all

Disable web management interface access from WAN/Internet

Navigate to router settings > Remote Management > Disable

Network segmentation

all

Isolate router management interface to trusted network segment only

🧯 If You Can't Patch

  • Replace affected device with a different model from a responsive vendor
  • Implement strict firewall rules to block all external access to the router's management interface

🔍 How to Verify

Check if Vulnerable:

Check firmware version in router web interface. If version is M16U1_V240425, device is vulnerable.

Check Version:

Login to router web interface and check System Status or About page

Verify Fix Applied:

No fix available to verify. Monitor for vendor updates.

📡 Detection & Monitoring

Log Indicators:

  • Unusual command execution in system logs
  • Multiple failed authentication attempts followed by successful access
  • Suspicious entries in web server logs for /cgi-bin/wireless.cgi

Network Indicators:

  • Unusual outbound connections from router
  • Traffic to known malicious IPs from router
  • Unexpected port scans originating from router

SIEM Query:

source="router_logs" AND (uri="/cgi-bin/wireless.cgi" AND (method="POST" OR method="GET") AND (param="delete_list" AND value CONTAINS ";" OR "|" OR "`"))

🔗 References

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