📄 Description (English)
A vulnerability was found in Tenda 4G06 04.06.01.29. This vulnerability affects the function fromDhcpListClient of the file /goform/DhcpListClient of the component Endpoint. Performing a manipulation of the argument page results in stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made public and could be used.
🤖 AI Executive Summary
A critical stack-based buffer overflow vulnerability exists in Tenda 4G06 firmware (v04.06.01.29) affecting the DHCP list client function. The vulnerability allows remote attackers to manipulate the 'page' parameter to trigger a buffer overflow, potentially leading to remote code execution. With public exploits available and no patch currently released, this poses an immediate threat to organizations using affected Tenda devices.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 23, 2026 13:58
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability significantly impacts Saudi telecommunications and ISP sectors, particularly organizations using Tenda 4G06 devices for network infrastructure and customer connectivity. STC, Mobily, and Zain may have deployed these devices in their networks. Government agencies and critical infrastructure operators relying on Tenda equipment for remote access or network management face elevated risk of unauthorized access and potential lateral movement. Banking and financial institutions using these devices for connectivity could experience service disruption or data compromise. The lack of available patches makes this a critical concern for SAMA-regulated entities and NCA-supervised organizations.
🏢 Affected Saudi Sectors
Telecommunications (STC, Mobily, Zain)
Internet Service Providers
Government Agencies
Critical Infrastructure
Banking and Financial Services
Healthcare
Energy Sector
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Inventory all Tenda 4G06 devices running firmware version 04.06.01.29 across your organization
2. Isolate affected devices from critical networks or place them behind additional security controls
3. Disable remote management features on affected devices if possible
4. Implement network segmentation to restrict access to the /goform/DhcpListClient endpoint
5. Monitor for suspicious DHCP-related traffic patterns
COMPENSATING CONTROLS:
1. Deploy Web Application Firewall (WAF) rules to block requests with suspicious 'page' parameter values
2. Implement strict input validation at network perimeter for traffic destined to affected devices
3. Enable detailed logging and alerting on the /goform/DhcpListClient endpoint
4. Restrict administrative access to affected devices to trusted IP addresses only
5. Consider replacing Tenda 4G06 devices with alternative vendors' equipment
DETECTION RULES:
1. Monitor for POST requests to /goform/DhcpListClient with oversized 'page' parameter values
2. Alert on any stack-based memory access patterns from the DhcpListClient function
3. Track firmware version compliance across all Tenda devices
4. Monitor for unexpected process execution or privilege escalation following DHCP client access
5. Implement IDS/IPS signatures for known buffer overflow exploitation patterns
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. قم بحصر جميع أجهزة Tenda 4G06 التي تعمل بإصدار البرنامج الثابت 04.06.01.29 في جميع أنحاء المنظمة
2. عزل الأجهزة المتأثرة عن الشبكات الحرجة أو ضعها خلف عناصر تحكم أمان إضافية
3. تعطيل ميزات الإدارة البعيدة على الأجهزة المتأثرة إن أمكن
4. تنفيذ تقسيم الشبكة لتقييد الوصول إلى نقطة نهاية /goform/DhcpListClient
5. مراقبة أنماط حركة DHCP المريبة
عناصر التحكم التعويضية:
1. نشر قواعد جدار حماية تطبيقات الويب (WAF) لحجب الطلبات ذات قيم معامل 'page' المريبة
2. تنفيذ التحقق الصارم من المدخلات على محيط الشبكة لحركة المرور الموجهة للأجهزة المتأثرة
3. تفعيل السجلات التفصيلية والتنبيهات على نقطة نهاية /goform/DhcpListClient
4. تقييد الوصول الإداري للأجهزة المتأثرة إلى عناوين IP الموثوقة فقط
5. النظر في استبدال أجهزة Tenda 4G06 بمعدات من بائعين بدائل
قواعد الكشف:
1. مراقبة طلبات POST إلى /goform/DhcpListClient بقيم معامل 'page' كبيرة الحجم
2. التنبيه على أي أنماط وصول الذاكرة المستندة إلى المكدس من وظيفة DhcpListClient
3. تتبع توافق إصدار البرنامج الثابت عبر جميع أجهزة Tenda
4. مراقبة تنفيذ العملية غير المتوقع أو تصعيد الامتيازات بعد وصول عميل DHCP
5. تنفيذ توقيعات IDS/IPS لأنماط استغلال تجاوز المخزن المؤقت المعروفة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Network security controls
ECC 2024 A.5.2.1 - Access control implementation
ECC 2024 A.6.2.1 - Vulnerability management
ECC 2024 A.8.2.3 - System hardening and configuration management
🔵 SAMA CSF
SAMA CSF ID.BE-1 - Asset management
SAMA CSF PR.AC-1 - Access control policy
SAMA CSF PR.IP-12 - Vulnerability management
SAMA CSF DE.CM-1 - Network monitoring
🟡 ISO 27001:2022
ISO 27001:2022 A.5.15 - Supplier relationships
ISO 27001:2022 A.8.1 - Information security policies
ISO 27001:2022 A.8.6 - Management of technical vulnerabilities
ISO 27001:2022 A.8.22 - Restrictions on software installation
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Security patches and updates
PCI DSS 11.2 - Vulnerability scanning
🔗 References & Sources 5
🔗
https://github.com/Kiciot/cve/issues/1
cna@vuldb.com
Exploit
Issue Tracking
🔗
https://vuldb.com/submit/778625
cna@vuldb.com
Permissions Required
VDB Entry
🔗
https://vuldb.com/vuln/353962
cna@vuldb.com
Third Party Advisory
VDB Entry
🔗
https://vuldb.com/vuln/353962/cti
cna@vuldb.com
VDB Entry
Permissions Required
🔗
https://www.tenda.com.cn/
cna@vuldb.com
Product
📦 Affected Products / CPE 1 entries
tenda:4g06_firmware:04.06.01.29