📄 Description (English)
A vulnerability was identified in Tenda AC10 16.03.10.10_multi_TDE01. This affects the function fromSysToolChangePwd of the file /bin/httpd. The manipulation leads to stack-based buffer overflow. The attack may be initiated remotely. Multiple endpoints might be affected.
🤖 AI Executive Summary
A critical stack-based buffer overflow vulnerability exists in Tenda AC10 router firmware (version 16.03.10.10_multi_TDE01) affecting the password change function in the HTTP daemon. This remotely exploitable vulnerability (CVSS 8.8) could allow unauthenticated attackers to execute arbitrary code or cause denial of service. No patch is currently available, making immediate mitigation essential for affected organizations.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 23, 2026 18:06
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi organizations using Tenda AC10 routers as network infrastructure. Primary impact sectors include: Banking and Financial Services (SAMA-regulated entities using these routers for branch connectivity), Government agencies (NCA oversight), Healthcare institutions (MOH facilities), Telecommunications providers (STC, Mobily infrastructure), and Energy sector (ARAMCO and downstream operations). The vulnerability affects remote code execution capabilities, potentially compromising network perimeter security and enabling lateral movement into critical systems. SMEs and small government offices commonly deploy Tenda equipment, making them particularly vulnerable.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Healthcare
Energy and Utilities
Telecommunications
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 AC10 devices running firmware 16.03.10.10_multi_TDE01 across your network using network scanning tools
2. Isolate affected devices from critical network segments if possible, or implement network segmentation
3. Disable remote management features on affected routers (disable WAN-side HTTP/HTTPS access)
4. Change default credentials and implement strong authentication if accessible
5. Monitor for suspicious HTTP requests to /bin/httpd endpoints
PATCHING GUIDANCE:
- Check Tenda's official support portal for firmware updates beyond 16.03.10.10_multi_TDE01
- If no patch available, consider replacing affected devices with patched alternatives
- Test any firmware updates in isolated lab environment first
COMPENSATING CONTROLS:
- Implement Web Application Firewall (WAF) rules to block malformed requests to password change endpoints
- Deploy intrusion detection/prevention systems (IDS/IPS) with signatures for buffer overflow attempts
- Restrict HTTP/HTTPS access to router management interfaces via firewall rules
- Implement network access control (NAC) to limit device connectivity
DETECTION RULES:
- Monitor for unusually long parameter values in HTTP POST requests to /bin/httpd
- Alert on failed authentication attempts followed by crash/restart of router
- Track firmware version inventory and flag 16.03.10.10_multi_TDE01 instances
- Monitor for unexpected process execution or memory corruption indicators
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة Tenda AC10 التي تعمل بالإصدار 16.03.10.10_multi_TDE01 عبر شبكتك باستخدام أدوات المسح
2. عزل الأجهزة المتأثرة عن القطاعات الحرجة أو تطبيق تقسيم الشبكة
3. تعطيل ميزات الإدارة عن بعد (تعطيل وصول HTTP/HTTPS من جانب WAN)
4. تغيير بيانات الاعتماد الافتراضية وتطبيق المصادقة القوية
5. مراقبة الطلبات المريبة إلى نقاط نهاية /bin/httpd
إرشادات التصحيح:
- تحقق من بوابة دعم Tenda الرسمية للتحديثات بعد الإصدار 16.03.10.10_multi_TDE01
- إذا لم يتوفر تصحيح، فكر في استبدال الأجهزة المتأثرة بأجهزة محدثة
- اختبر أي تحديثات في بيئة معزولة أولاً
الضوابط البديلة:
- تطبيق قواعد جدار حماية تطبيقات الويب (WAF) لحجب الطلبات المشوهة
- نشر أنظمة كشف/منع الاختراق (IDS/IPS) مع توقيعات فيض المخزن المؤقت
- تقييد وصول HTTP/HTTPS إلى واجهات إدارة الموجه عبر قواعد جدار الحماية
- تطبيق التحكم في الوصول إلى الشبكة (NAC) لتحديد اتصال الجهاز
قواعد الكشف:
- مراقبة قيم المعاملات الطويلة بشكل غير عادي في طلبات HTTP POST
- تنبيهات محاولات المصادقة الفاشلة متبوعة بتعطل الموجه
- تتبع جرد إصدار البرنامج الثابت والإشارة إلى الحالات المتأثرة
- مراقبة تنفيذ العمليات غير المتوقعة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.8.1 - Asset Management and Inventory Control (device identification and tracking)
ECC 2024 A.12.6 - Change Management (firmware update procedures)
ECC 2024 A.14.2 - System Development and Maintenance (secure coding practices)
ECC 2024 A.5.1 - Access Control (network segmentation and device isolation)
🔵 SAMA CSF
SAMA CSF ID.AM-1 - Asset Management (inventory of network devices)
SAMA CSF PR.AC-1 - Access Control (authentication and authorization)
SAMA CSF PR.PT-1 - Protection Technology (network segmentation)
SAMA CSF DE.CM-1 - Detection and Analysis (monitoring and detection)
🟡 ISO 27001:2022
ISO 27001:2022 A.5.1 - Policies for information security
ISO 27001:2022 A.8.1 - Asset management
ISO 27001:2022 A.8.2 - Classification of information
ISO 27001:2022 A.12.6 - Change management
ISO 27001:2022 A.14.2 - System development and maintenance
🟣 PCI DSS v4.0.1
PCI DSS 1.1 - Firewall configuration standards
PCI DSS 2.1 - Change default vendor-supplied passwords
PCI DSS 6.2 - Security patches and updates
PCI DSS 11.3 - Penetration testing and vulnerability scanning
🔗 References & Sources 5