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Vulnerabilities

CVE-2026-7098

High ⚡ Exploit Available
CWE-119 — Weakness Type
Published: Apr 27, 2026  ·  Modified: May 4, 2026  ·  Source: NVD
CVSS v3
8.8
🔗 NVD Official
📄 Description (English)

A security vulnerability has been detected in Tenda F456 1.0.0.5. Impacted is the function fromDhcpListClient of the file /goform/DhcpListClient of the component httpd. Such manipulation of the argument page leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.

🤖 AI Executive Summary

A critical buffer overflow vulnerability exists in Tenda F456 router firmware version 1.0.0.5 affecting the DHCP client list function. The vulnerability allows remote attackers to execute arbitrary code with high privileges through manipulation of the 'page' parameter. With CVSS 8.8 and publicly disclosed exploits, this poses immediate risk to organizations using this router model for network infrastructure.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 30, 2026 21:42
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations across multiple sectors are at significant risk: Government agencies and NCA infrastructure using Tenda F456 routers for network connectivity; Banking sector (SAMA-regulated institutions) utilizing these devices in branch networks or remote office connectivity; Telecommunications providers (STC, Mobily, Zain) potentially using these routers in customer premises equipment or network infrastructure; Healthcare facilities relying on these routers for medical device connectivity; Energy sector (ARAMCO and related entities) using these devices in operational technology networks. The lack of available patches creates persistent vulnerability exposure.
🏢 Affected Saudi Sectors
Government Banking Telecommunications Healthcare Energy Critical Infrastructure
⚖️ Saudi Risk Score (AI)
8.9
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Tenda F456 devices running firmware 1.0.0.5 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 httpd service on port 80/443
4. Block external access to the /goform/DhcpListClient endpoint using WAF or firewall rules

PATCHING GUIDANCE:
1. Check Tenda's official website for firmware updates beyond 1.0.0.5
2. If updates available, schedule immediate patching during maintenance windows
3. Maintain backups before firmware updates

COMPENSATING CONTROLS (if no patch available):
1. Implement strict firewall rules: deny all external access to router management interfaces
2. Restrict access to /goform/DhcpListClient to authorized administrative IPs only
3. Deploy IDS/IPS signatures to detect exploitation attempts
4. Monitor router logs for suspicious DHCP client list queries
5. Consider replacing affected devices with alternative router models from vendors with active security support

DETECTION RULES:
1. Monitor HTTP requests containing 'page=' parameter with unusual values or excessive length to /goform/DhcpListClient
2. Alert on any remote access attempts to router management interfaces
3. Track firmware version inventory and flag 1.0.0.5 instances
4. Monitor for unexpected process execution or privilege escalation on router devices
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة Tenda F456 التي تعمل بالبرنامج الثابت 1.0.0.5 في شبكتك باستخدام أدوات المسح
2. عزل الأجهزة المتأثرة عن قطاعات الشبكة الحرجة إن أمكن
3. تنفيذ تقسيم الشبكة لتقييد الوصول إلى خدمة httpd على المنافذ 80/443
4. حظر الوصول الخارجي إلى نقطة النهاية /goform/DhcpListClient باستخدام جدار الحماية أو قواعد WAF

إرشادات التصحيح:
1. تحقق من موقع Tenda الرسمي للحصول على تحديثات البرنامج الثابت بعد 1.0.0.5
2. إذا كانت التحديثات متاحة، قم بجدولة التصحيح الفوري خلال نوافذ الصيانة
3. الاحتفاظ بنسخ احتياطية قبل تحديثات البرنامج الثابت

الضوابط البديلة (إذا لم يكن التصحيح متاحًا):
1. تنفيذ قواعد جدار الحماية الصارمة: رفض جميع الوصول الخارجي إلى واجهات إدارة جهاز التوجيه
2. تقييد الوصول إلى /goform/DhcpListClient لعناوين IP الإدارية المصرح بها فقط
3. نشر توقيعات IDS/IPS للكشف عن محاولات الاستغلال
4. مراقبة سجلات جهاز التوجيه للاستعلامات المريبة عن قائمة عميل DHCP
5. النظر في استبدال الأجهزة المتأثرة بنماذج موجهات بديلة من البائعين الذين يتمتعون بدعم أمان نشط

قواعد الكشف:
1. مراقبة طلبات HTTP التي تحتوي على معامل 'page=' بقيم غير عادية أو طول مفرط إلى /goform/DhcpListClient
2. التنبيه على أي محاولات وصول بعيدة إلى واجهات إدارة جهاز التوجيه
3. تتبع جرد إصدار البرنامج الثابت والإشارة إلى حالات 1.0.0.5
4. مراقبة تنفيذ العمليات غير المتوقعة أو تصعيد الامتيازات على أجهزة التوجيه
📋 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.RA-1 - Asset management and vulnerability identification SAMA CSF PR.IP-12 - Security patch management SAMA CSF DE.CM-1 - Detection and monitoring of anomalous activity
🟡 ISO 27001:2022
ISO 27001:2022 A.12.3.1 - Segregation of networks 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 patches must be installed within defined timeframe PCI DSS 11.2 - Vulnerability scanning and remediation
📦 Affected Products / CPE 1 entries
tenda:f456_firmware:1.0.0.5
📊 CVSS Score
8.8
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityH — High
IntegrityH — High
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score8.8
CWECWE-119
EPSS0.15%
Exploit ✓ Yes
Patch ✗ No
Published 2026-04-27
Source Feed nvd
🇸🇦 Saudi Risk Score
8.9
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
exploit-available CWE-119
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