📄 Description (English)
A vulnerability was identified in Tenda HG9 300001138. This impacts an unknown function of the file /boaform/formWlanSetup of the component Wireless Configuration Endpoint. The manipulation of the argument ssid leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit is publicly available and might be used.
🤖 AI Executive Summary
A critical stack-based buffer overflow vulnerability exists in Tenda HG9 router firmware (version 300001138) affecting the wireless configuration endpoint. The vulnerability can be exploited remotely through manipulation of the SSID parameter, potentially allowing unauthorized code execution. With publicly available exploits and widespread router deployment across Saudi networks, immediate patching is essential to prevent compromise of home and small business networks.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 22, 2026 23:00
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi residential and small business networks, particularly affecting SMEs and government employee home networks. Telecom sector (STC, Mobily, Zain) customers using Tenda HG9 routers are at direct risk. Secondary impact includes potential compromise of corporate networks through compromised home office connections. Banking sector employees working remotely could expose sensitive financial systems. Healthcare facilities using these routers for non-critical systems face operational disruption risks. The vulnerability enables lateral movement into connected devices and potential botnet recruitment.
🏢 Affected Saudi Sectors
Telecommunications (STC, Mobily, Zain customer networks)
Banking and Financial Services (remote worker networks)
Government (employee home networks, NCA oversight)
Healthcare (facility networks, telemedicine infrastructure)
Energy (ARAMCO contractor networks)
Small and Medium Enterprises (SME networks)
Education (university and school networks)
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
8.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Tenda HG9 devices in your network using network scanning tools (nmap, Shodan queries for Saudi IP ranges)
2. Isolate affected devices from critical networks if patching cannot be completed immediately
3. Change default router credentials and disable remote management features
4. Monitor router logs for suspicious wireless configuration attempts
PATCHING:
1. Check Tenda's official website for firmware version > 300001138
2. Download firmware only from official Tenda sources (verify SSL certificates)
3. Perform firmware update through router admin interface (192.168.0.1)
4. Verify successful update by checking firmware version post-reboot
5. Document all patched devices in asset inventory
COMPENSATING CONTROLS (if patch unavailable):
1. Disable wireless configuration endpoint access from WAN side
2. Implement network segmentation isolating router management traffic
3. Deploy IDS/IPS rules blocking malformed SSID parameters
4. Restrict router access to trusted IP addresses only
5. Enable router firewall and disable UPnP
DETECTION:
1. Monitor for HTTP POST requests to /boaform/formWlanSetup with oversized SSID parameters (>32 bytes)
2. Alert on router process crashes or unexpected reboots
3. Track unauthorized wireless network creation attempts
4. Monitor for unusual outbound connections from router IP addresses
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة Tenda HG9 في شبكتك باستخدام أدوات المسح (nmap، استعلامات Shodan للنطاقات السعودية)
2. عزل الأجهزة المتأثرة عن الشبكات الحرجة إذا لم يكن التصحيح ممكنًا فورًا
3. تغيير بيانات اعتماد جهاز التوجيه الافتراضية وتعطيل ميزات الإدارة عن بعد
4. مراقبة سجلات جهاز التوجيه لمحاولات تكوين لاسلكي مريبة
التصحيح:
1. تحقق من موقع Tenda الرسمي للحصول على إصدار ثابت > 300001138
2. قم بتنزيل البرنامج الثابت من مصادر Tenda الرسمية فقط (تحقق من شهادات SSL)
3. قم بتحديث البرنامج الثابت من خلال واجهة إدارة جهاز التوجيه (192.168.0.1)
4. تحقق من نجاح التحديث بفحص إصدار البرنامج الثابت بعد إعادة التشغيل
5. وثق جميع الأجهزة المصححة في جرد الأصول
الضوابط البديلة (إذا لم يكن التصحيح متاحًا):
1. تعطيل وصول نقطة نهاية تكوين الشبكات اللاسلكية من جانب WAN
2. تنفيذ تقسيم الشبكة لعزل حركة إدارة جهاز التوجيه
3. نشر قواعد IDS/IPS لحظر معاملات SSID المشوهة
4. تقييد وصول جهاز التوجيه بعناوين IP موثوقة فقط
5. تفعيل جدار الحماية في جهاز التوجيه وتعطيل UPnP
الكشف:
1. مراقبة طلبات HTTP POST إلى /boaform/formWlanSetup بمعاملات SSID كبيرة الحجم (> 32 بايت)
2. تنبيه عند توقف عملية جهاز التوجيه أو إعادة تشغيل غير متوقعة
3. تتبع محاولات إنشاء شبكة لاسلكية غير مصرح بها
4. مراقبة الاتصالات الصادرة غير العادية من عناوين IP جهاز التوجيه
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.8.1 - Asset Management and Inventory Control
ECC 2024 A.12.6.1 - Management of Technical Vulnerabilities
ECC 2024 A.14.2.1 - Secure Development Policy
ECC 2024 A.16.1 - Information Security Incident Management
🔵 SAMA CSF
ID.RA-1 - Asset Management
PR.IP-12 - Security Patch Management
DE.CM-8 - Vulnerability Scanning
RS.RP-1 - Response Planning
🟡 ISO 27001:2022
A.12.6.1 - Management of technical vulnerabilities
A.14.2.1 - Secure development policy and procedures
A.8.1.1 - Inventory of assets
A.16.1.5 - Response to information security incidents
🟣 PCI DSS v4.0.1
Requirement 6.2 - Security patches for system components
Requirement 11.2 - Vulnerability scanning
Requirement 2.1 - Default security parameters
🔗 References & Sources 5
🔗
https://github.com/QIU-DIE/cve-nneeww/issues/7
cna@vuldb.com
Exploit
Issue Tracking
Mitigation
Third Party Advisory
🔗
https://vuldb.com/?ctiid.347214
cna@vuldb.com
Permissions Required
VDB Entry
🔗
https://vuldb.com/?id.347214
cna@vuldb.com
Third Party Advisory
VDB Entry
🔗
https://vuldb.com/?submit.755167
cna@vuldb.com
Third Party Advisory
VDB Entry
🔗
https://www.tenda.com.cn/
cna@vuldb.com
Product
📦 Affected Products / CPE 1 entries
tenda:hg9_firmware:300001138