CVE-2026-2152

7.2 HIGH

📋 TL;DR

This CVE describes a remote command injection vulnerability in D-Link DIR-615 routers through the web configuration interface. Attackers can execute arbitrary operating system commands by manipulating routing parameters in the adv_routing.php file. Only unsupported D-Link DIR-615 products are affected.

💻 Affected Systems

Products:
  • D-Link DIR-615
Versions: 4.10
Operating Systems: Embedded router firmware
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects products no longer supported by D-Link. Requires web interface access.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full router compromise allowing attacker to install persistent backdoors, intercept network traffic, pivot to internal networks, or use router as botnet node.

🟠

Likely Case

Router takeover enabling network traffic monitoring, DNS hijacking, credential theft, and lateral movement to connected devices.

🟢

If Mitigated

Limited impact if router is behind firewall with restricted web interface access and network segmentation in place.

🌐 Internet-Facing: HIGH - Web interface is typically internet-accessible by default, allowing remote exploitation.
🏢 Internal Only: MEDIUM - Internal attackers could exploit if they gain network access, but requires specific targeting.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploit details are publicly available. Attack requires web interface access but not authentication to the vulnerable component.

🛠️ 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. Replace affected hardware with supported models.

🔧 Temporary Workarounds

Disable Web Interface

all

Disable remote web configuration interface access

Access router admin panel > Administration > Remote Management > Disable

Network Segmentation

all

Isolate router on separate VLAN with restricted access

🧯 If You Can't Patch

  • Replace affected DIR-615 routers with supported models
  • Implement strict firewall rules blocking all external access to router web interface (ports 80/443)

🔍 How to Verify

Check if Vulnerable:

Check router model and firmware version via admin interface or by accessing http://router-ip/

Check Version:

curl -s http://router-ip/ | grep -i 'dir-615' || telnet router-ip 80

Verify Fix Applied:

Verify router has been replaced or web interface is inaccessible from untrusted networks

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to adv_routing.php
  • Suspicious command execution in router logs
  • Multiple failed routing configuration attempts

Network Indicators:

  • Unexpected outbound connections from router
  • DNS queries to malicious domains from router
  • Port scans originating from router

SIEM Query:

source="router.log" AND ("adv_routing.php" OR "dest_ip" OR "submask" OR "gw") AND status=200

🔗 References

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