CVE-2025-11665

4.7 MEDIUM

📋 TL;DR

This CVE describes an OS command injection vulnerability in D-Link DAP-2695 access points through the firmware update handler. Attackers can execute arbitrary commands on affected devices remotely. Only unsupported products are affected, meaning no official patches are available.

💻 Affected Systems

Products:
  • D-Link DAP-2695
Versions: 2.00RC131
Operating Systems: Embedded Linux-based firmware
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects products no longer supported by D-Link. Firmware update handler component is vulnerable.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete device compromise allowing attacker to install persistent backdoors, pivot to internal networks, or use 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 device is isolated from internet and internal networks with strict network segmentation.

🌐 Internet-Facing: HIGH - Vulnerability can be exploited remotely without authentication, making internet-facing devices prime targets.
🏢 Internal Only: MEDIUM - Internal devices still vulnerable to network-based attacks but require attacker to breach perimeter first.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Requires understanding of firmware update process and command injection techniques. No public exploit code available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: N/A

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

Restart Required: No

Instructions:

No official patch available as product is end-of-life. Consider replacement with supported hardware.

🔧 Temporary Workarounds

Network Isolation

all

Isolate affected devices from internet and restrict internal network access

Configure firewall rules to block all inbound traffic to affected devices
Place devices in isolated VLAN

Disable Remote Management

D-Link DAP-2695

Disable all remote management interfaces and firmware update capabilities

Access web interface > Administration > Remote Management > Disable
Disable auto-update features

🧯 If You Can't Patch

  • Replace with supported hardware that receives security updates
  • Implement strict network segmentation and firewall rules to limit device exposure

🔍 How to Verify

Check if Vulnerable:

Check firmware version via web interface: Login > Status > Firmware Version. If version is 2.00RC131, device is vulnerable.

Check Version:

ssh admin@device-ip 'cat /etc/version' or check web interface

Verify Fix Applied:

No fix available to verify. Workarounds can be verified by testing network isolation and disabled remote management.

📡 Detection & Monitoring

Log Indicators:

  • Unusual firmware update attempts
  • Suspicious command execution in system logs
  • Failed authentication attempts to firmware update endpoint

Network Indicators:

  • Unexpected outbound connections from device
  • Traffic to firmware update ports (typically 80/443) with unusual payloads

SIEM Query:

source="dlink-dap2695" AND (event="firmware_update" OR event="command_execution") AND status="failed"

🔗 References

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