📄 Description (English)
A weakness has been identified in Tenda CX12L 16.03.53.12. This issue affects the function fromNatStaticSetting of the file /goform/NatStaticSetting. This manipulation of the argument page causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.
🤖 AI Executive Summary
A critical stack-based buffer overflow vulnerability exists in Tenda CX12L router firmware version 16.03.53.12 affecting the NatStaticSetting function. The vulnerability allows remote attackers to execute arbitrary code by manipulating the 'page' parameter, with a CVSS score of 8.8. No patch is currently available, making immediate mitigation essential for Saudi organizations relying on this router model.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 23, 2026 20:17
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi telecommunications providers (STC, Mobily, Zain), government agencies using Tenda routers for network infrastructure, and small-to-medium enterprises. Banking sector organizations using these routers for branch connectivity face elevated risk of network compromise. Healthcare facilities and ARAMCO-affiliated operations utilizing this equipment could experience service disruption and data exfiltration. The lack of available patches increases exposure window for critical infrastructure sectors regulated by NCA and SAMA.
🏢 Affected Saudi Sectors
Telecommunications (STC, Mobily, Zain)
Government Agencies
Banking and Financial Services
Healthcare
Energy (ARAMCO)
Small and Medium Enterprises
Education
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
8.5
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Tenda CX12L devices running firmware 16.03.53.12 in your network using network scanning tools
2. Isolate affected devices from critical network segments if possible
3. Implement network segmentation to restrict access to the router's web interface (port 80/443)
4. Disable remote management features on affected routers
5. Monitor for suspicious access attempts to /goform/NatStaticSetting endpoint
COMPENSATING CONTROLS:
6. Deploy WAF rules to block requests with suspicious 'page' parameter values
7. Implement strict input validation at network perimeter
8. Enable detailed logging on affected devices and forward logs to SIEM
9. Restrict administrative access to router management interfaces via IP whitelisting
10. Consider replacing affected devices with patched alternatives from Tenda or alternative vendors
DETECTION RULES:
11. Monitor for POST requests to /goform/NatStaticSetting with oversized 'page' parameters
12. Alert on any successful code execution attempts from router management interfaces
13. Track firmware version compliance across network inventory
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة Tenda CX12L التي تعمل بالإصدار 16.03.53.12 في شبكتك باستخدام أدوات المسح
2. عزل الأجهزة المتأثرة عن القطاعات الحرجة في الشبكة إن أمكن
3. تطبيق تقسيم الشبكة لتقييد الوصول إلى واجهة الويب للموجه (المنفذ 80/443)
4. تعطيل ميزات الإدارة البعيدة على الأجهزة المتأثرة
5. مراقبة محاولات الوصول المريبة إلى نقطة النهاية /goform/NatStaticSetting
الضوابط التعويضية:
6. نشر قواعد WAF لحجب الطلبات ذات قيم معامل 'page' المريبة
7. تطبيق التحقق الصارم من صحة المدخلات على محيط الشبكة
8. تفعيل التسجيل التفصيلي على الأجهزة المتأثرة وإعادة توجيه السجلات إلى SIEM
9. تقييد الوصول الإداري إلى واجهات إدارة الموجه عبر القائمة البيضاء للعناوين
10. النظر في استبدال الأجهزة المتأثرة بدائل معدلة من Tenda أو بائعين آخرين
قواعد الكشف:
11. مراقبة طلبات POST إلى /goform/NatStaticSetting بمعاملات 'page' كبيرة الحجم
12. التنبيه على أي محاولات تنفيذ أكواد ناجحة من واجهات إدارة الموجه
13. تتبع امتثال إصدار البرنامج الثابت عبر جرد الشبكة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.12.6.1 - Management of technical vulnerabilities
ECC 2024 A.14.2.1 - Secure development policy
ECC 2024 A.12.2.1 - Monitoring and logging of network access
🔵 SAMA CSF
SAMA CSF ID.BE-1 - Asset management and inventory
SAMA CSF PR.IP-12 - Security patch management
SAMA CSF DE.CM-1 - Detection and monitoring systems
🟡 ISO 27001:2022
ISO 27001:2022 A.12.2.1 - Monitoring and logging
ISO 27001:2022 A.12.6.1 - Management of technical vulnerabilities
ISO 27001:2022 A.14.2.1 - Secure development and change management
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Security patch management
PCI DSS 11.2 - Vulnerability scanning and assessment