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Vulnerabilities

CVE-2026-7034

High ⚡ Exploit Available
CWE-119 — Weakness Type
Published: Apr 26, 2026  ·  Modified: May 3, 2026  ·  Source: NVD
CVSS v3
8.8
🔗 NVD Official
📄 Description (English)

A vulnerability was found in Tenda FH1202 1.2.0.14(408). Affected by this issue is the function WrlExtraSet of the file /goform/WrlExtraSet of the component httpd. Performing a manipulation of the argument Go results in stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made public and could be used.

🤖 AI Executive Summary

A stack-based buffer overflow vulnerability exists in Tenda FH1202 wireless router firmware (version 1.2.0.14(408)) affecting the WrlExtraSet HTTP handler. The vulnerability allows remote attackers to execute arbitrary code by manipulating the 'Go' parameter, with a CVSS score of 8.8. No patch is currently available, making this a critical risk for organizations using this router model in their network infrastructure.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 27, 2026 15:00
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi organizations across multiple sectors: (1) Banking & Financial Services - Tenda routers commonly used in branch networks and ATM infrastructure; (2) Government & NCA - Critical for network perimeter security; (3) Healthcare - MOHP facilities using these routers for network connectivity; (4) Energy Sector - ARAMCO and utilities relying on these devices for operational technology networks; (5) Telecommunications - STC and other telecom providers using Tenda equipment in customer premises and network infrastructure; (6) SMEs & Retail - Widespread adoption in small business networks across Saudi Arabia. Remote code execution capability enables complete network compromise without authentication.
🏢 Affected Saudi Sectors
Banking & Financial Services Government & Public Administration Healthcare (MOHP) Energy & Utilities (ARAMCO) Telecommunications (STC, Mobily, Zain) Retail & E-commerce Small & Medium Enterprises Education Hospitality
⚖️ Saudi Risk Score (AI)
8.9
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Tenda FH1202 routers in your network using network scanning tools (nmap, Shodan queries)
2. Isolate affected devices from critical network segments if possible
3. Implement network segmentation to limit lateral movement from compromised routers
4. Enable enhanced logging on affected devices and upstream network equipment

PATCHING GUIDANCE:
1. Check Tenda's official website (tendacn.com) for firmware updates - currently no patch available
2. Subscribe to Tenda security advisories for patch availability
3. Prepare upgrade procedure documentation for when patches become available

COMPENSATING CONTROLS (until patch available):
1. Restrict HTTP/HTTPS access to router management interface (port 80/443) using firewall rules - allow only from authorized administrative networks
2. Disable remote management features if not required
3. Change default credentials immediately and enforce strong passwords
4. Implement Web Application Firewall (WAF) rules to detect buffer overflow attempts in 'Go' parameter
5. Monitor for suspicious HTTP requests to /goform/WrlExtraSet endpoint
6. Deploy intrusion detection signatures for CVE-2026-7034 exploitation attempts

DETECTION RULES:
1. Monitor for HTTP POST requests to /goform/WrlExtraSet with unusually long 'Go' parameter values (>256 bytes)
2. Alert on any successful code execution attempts from router management interface
3. Track failed authentication attempts to router admin panel
4. Monitor for unexpected process execution from httpd service
5. Implement YARA rules for malicious payloads targeting this vulnerability
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة التوجيه Tenda FH1202 في شبكتك باستخدام أدوات المسح (nmap، استعلامات Shodan)
2. عزل الأجهزة المتأثرة عن أجزاء الشبكة الحرجة إن أمكن
3. تنفيذ تقسيم الشبكة لتحديد الحركة الجانبية من أجهزة التوجيه المخترقة
4. تفعيل السجلات المحسّنة على الأجهزة المتأثرة ومعدات الشبكة العلوية

إرشادات التصحيح:
1. التحقق من موقع Tenda الرسمي (tendacn.com) للحصول على تحديثات البرامج الثابتة - لا يتوفر تصحيح حالياً
2. الاشتراك في تنبيهات أمان Tenda لتوفر التصحيحات
3. تحضير وثائق إجراء الترقية عند توفر التصحيحات

الضوابط البديلة (حتى توفر التصحيح):
1. تقييد الوصول HTTP/HTTPS إلى واجهة إدارة جهاز التوجيه (المنفذ 80/443) باستخدام قواعد جدار الحماية - السماح فقط من الشبكات الإدارية المصرح بها
2. تعطيل ميزات الإدارة البعيدة إذا لم تكن مطلوبة
3. تغيير بيانات الاعتماد الافتراضية فوراً وفرض كلمات مرور قوية
4. تنفيذ قواعد جدار تطبيقات الويب (WAF) للكشف عن محاولات تجاوز المخزن المؤقت في معامل 'Go'
5. مراقبة طلبات HTTP المريبة إلى نقطة النهاية /goform/WrlExtraSet
6. نشر توقيعات كشف الاختراق لمحاولات استغلال CVE-2026-7034

قواعد الكشف:
1. مراقبة طلبات HTTP POST إلى /goform/WrlExtraSet بقيم معامل 'Go' طويلة بشكل غير عادي (>256 بايت)
2. التنبيه على أي محاولات تنفيذ كود ناجحة من واجهة إدارة جهاز التوجيه
3. تتبع محاولات المصادقة الفاشلة على لوحة التحكم الإدارية لجهاز التوجيه
4. مراقبة تنفيذ العمليات غير المتوقعة من خدمة httpd
5. تنفيذ قواعد YARA للحمولات الضارة التي تستهدف هذه الثغرة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 - 5.1.1 (Network Security Controls) ECC 2024 - 5.2.1 (Vulnerability Management) ECC 2024 - 5.3.1 (Patch Management) ECC 2024 - 6.1.1 (Access Control to Network Devices) ECC 2024 - 7.1.1 (Intrusion Detection and Prevention)
🔵 SAMA CSF
SAMA CSF - Identify (ID.RA-1: Asset Inventory) SAMA CSF - Protect (PR.AC-1: Access Control) SAMA CSF - Protect (PR.PT-1: Protective Technology) SAMA CSF - Detect (DE.CM-1: Anomalies and Events) SAMA CSF - Respond (RS.MI-1: Incident Response)
🟡 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 (Information Classification) ISO 27001:2022 - A.13.1 (Network Security) ISO 27001:2022 - A.14.2 (System Development and Maintenance)
🟣 PCI DSS v4.0.1
PCI DSS 4.0 - Requirement 1 (Firewall Configuration) PCI DSS 4.0 - Requirement 2 (Default Security Parameters) PCI DSS 4.0 - Requirement 6 (Secure Development and Vulnerability Management) PCI DSS 4.0 - Requirement 11 (Testing Security Systems)
📦 Affected Products / CPE 1 entries
tenda:fh1202_firmware:1.2.0.14\(408\)
📊 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
EPSS0.05%
Exploit ✓ Yes
Patch ✗ No
Published 2026-04-26
Source Feed nvd
🇸🇦 Saudi Risk Score
8.9
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
CWE-119
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