📄 Description (English)
A vulnerability was detected in Edimax EW-7438RPn 1.12. This issue affects the function formEZCHNwlanSetup of the file /goform/formEZCHNwlanSetu of the component POST Request Handler. Performing a manipulation of the argument method results in command injection. Remote exploitation of the attack is possible. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
🤖 AI Executive Summary
A command injection vulnerability exists in Edimax EW-7438RPn wireless router firmware version 1.12 affecting the POST request handler. An attacker can manipulate the 'method' parameter to execute arbitrary commands remotely without authentication. With no patch available and public exploit details disclosed, this poses an immediate risk to organizations using this router model for network access and management.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: May 27, 2026 04:49
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi telecommunications providers (STC, Mobily, Zain), government agencies using Edimax routers for network infrastructure, and enterprises with distributed branch offices. Banking sector organizations using these routers for branch connectivity face elevated risk of network compromise. Healthcare facilities and ARAMCO operations relying on these devices for remote access are also vulnerable. The lack of vendor response and public exploit availability significantly increases exploitation likelihood across critical infrastructure.
🏢 Affected Saudi Sectors
Telecommunications (STC, Mobily, Zain)
Government and Public Administration
Banking and Financial Services
Healthcare
Energy (ARAMCO)
Retail and E-commerce
Education
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
7.8
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Identify all Edimax EW-7438RPn devices running firmware 1.12 in your network using network scanning tools
2. Isolate affected routers from critical systems and restrict administrative access
3. Monitor for suspicious POST requests to /goform/formEZCHNwlanSetu endpoint
4. Implement network segmentation to limit router access to authorized personnel only
Compensating Controls:
1. Deploy Web Application Firewall (WAF) rules to block POST requests with suspicious 'method' parameters
2. Implement strict input validation and command filtering at network perimeter
3. Enable detailed logging on affected devices and forward logs to SIEM for analysis
4. Restrict network access to router management interfaces using IP whitelisting
5. Disable remote management features if not required
Long-term Actions:
1. Plan immediate replacement of EW-7438RPn devices with alternative vendors (Cisco, Juniper, Fortinet)
2. Contact Edimax support for firmware updates or end-of-life guidance
3. Implement network access control (NAC) to prevent unauthorized device connections
4. Deploy intrusion detection signatures for command injection attempts
Detection Rules:
- Monitor for POST requests to /goform/formEZCHNwlanSetu with encoded or suspicious method parameters
- Alert on execution of shell commands (sh, bash, wget, curl) originating from router IP addresses
- Track failed authentication attempts followed by successful command execution
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة Edimax EW-7438RPn التي تعمل بالإصدار 1.12 في شبكتك باستخدام أدوات المسح
2. عزل أجهزة التوجيه المتأثرة عن الأنظمة الحرجة وتقييد الوصول الإداري
3. مراقبة طلبات POST المريبة إلى نقطة النهاية /goform/formEZCHNwlanSetu
4. تنفيذ تقسيم الشبكة لتحديد وصول التوجيه للموظفين المصرح لهم فقط
الضوابط التعويضية:
1. نشر قواعد جدار حماية تطبيقات الويب (WAF) لحجب طلبات POST بمعاملات 'method' مريبة
2. تنفيذ التحقق الصارم من المدخلات وتصفية الأوامر على محيط الشبكة
3. تفعيل التسجيل التفصيلي على الأجهزة المتأثرة وإعادة توجيه السجلات إلى SIEM
4. تقييد الوصول إلى واجهات إدارة التوجيه باستخدام قائمة بيضاء للعناوين
5. تعطيل ميزات الإدارة البعيدة إذا لم تكن مطلوبة
الإجراءات طويلة الأجل:
1. التخطيط للاستبدال الفوري لأجهزة EW-7438RPn بموردين بدائل
2. الاتصال بدعم Edimax للحصول على تحديثات البرامج الثابتة
3. تنفيذ التحكم في الوصول إلى الشبكة (NAC)
4. نشر توقيعات كشف الاختراق لمحاولات حقن الأوامر
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.8.1 - Asset Management and Inventory Control
ECC 2024 A.12.6 - Management of Technical Vulnerabilities
ECC 2024 A.14.2 - System Development and Maintenance Security
🔵 SAMA CSF
SAMA CSF ID.AM-1 - Physical Devices and Software Assets
SAMA CSF PR.IP-12 - Security Awareness and Training
SAMA CSF DE.CM-1 - Network Monitoring
🟡 ISO 27001:2022
ISO 27001:2022 A.5.19 - Addressing Information Security in Supplier Relationships
ISO 27001:2022 A.8.1 - Inventory of Assets
ISO 27001:2022 A.12.6 - Management of Technical Vulnerabilities and Exposures
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Security Patches and Updates
PCI DSS 11.2 - Vulnerability Scanning