CVE-2026-2885

8.8 HIGH

📋 TL;DR

A remote stack-based buffer overflow vulnerability in D-Link DWR-M960 routers allows attackers to execute arbitrary code by manipulating the submit-url parameter. This affects D-Link DWR-M960 version 1.01.07 specifically. Attackers can exploit this remotely without authentication to potentially take full control of affected devices.

💻 Affected Systems

Products:
  • D-Link DWR-M960
Versions: 1.01.07
Operating Systems: Embedded Linux
Default Config Vulnerable: ⚠️ Yes
Notes: All devices running the vulnerable firmware version are affected. The vulnerability is in the web management interface.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete device compromise leading to persistent backdoor installation, network traffic interception, lateral movement to internal networks, and botnet recruitment.

🟠

Likely Case

Remote code execution allowing attackers to modify device configuration, intercept traffic, or use the device as a pivot point for further attacks.

🟢

If Mitigated

Limited impact if devices are behind firewalls with strict inbound filtering, though internal threats remain possible.

🌐 Internet-Facing: HIGH
🏢 Internal Only: HIGH

🎯 Exploit Status

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

Public exploit code is available, making this easily weaponizable. No authentication is required for exploitation.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: https://www.dlink.com/

Restart Required: Yes

Instructions:

1. Check D-Link website for firmware updates. 2. Download latest firmware. 3. Access router admin interface. 4. Navigate to firmware update section. 5. Upload and apply new firmware. 6. Reboot device.

🔧 Temporary Workarounds

Disable Remote Management

all

Prevent external access to the vulnerable web interface

Network Segmentation

all

Isolate affected devices from critical network segments

🧯 If You Can't Patch

  • Implement strict firewall rules to block all inbound traffic to the router's management interface
  • Monitor network traffic for unusual patterns and implement intrusion detection systems

🔍 How to Verify

Check if Vulnerable:

Check firmware version in router admin interface under System Information. If version is 1.01.07, device is vulnerable.

Check Version:

curl -s http://router-ip/ | grep -i firmware

Verify Fix Applied:

After updating, verify firmware version is no longer 1.01.07. Test if the vulnerable endpoint still responds to malicious payloads.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to /boafrm/formIpv6Setup
  • Multiple failed buffer overflow attempts
  • Sudden configuration changes

Network Indicators:

  • Unusual outbound connections from router
  • Traffic spikes to/from router management interface
  • Port scanning originating from router

SIEM Query:

source="router-logs" AND (uri="/boafrm/formIpv6Setup" OR message="buffer overflow")

🔗 References

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