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Vulnerabilities

CVE-2026-2910

High ⚡ Exploit Available
A flaw has been found in Tenda HG9 300001138. This vulnerability affects unknown code of the file /boaform/formPing6. Executing a manipulation of the argument pingAddr can lead to stack-based buffer o
CWE-119 — Weakness Type
Published: Feb 22, 2026  ·  Modified: Feb 28, 2026  ·  Source: NVD
CVSS v3
8.8
🔗 NVD Official
📄 Description (English)

A flaw has been found in Tenda HG9 300001138. This vulnerability affects unknown code of the file /boaform/formPing6. Executing a manipulation of the argument pingAddr can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been published and may be used.

🤖 AI Executive Summary

A stack-based buffer overflow vulnerability (CVE-2026-2910) exists in Tenda HG9 router firmware version 300001138, affecting the /boaform/formPing6 endpoint. With a CVSS score of 8.8 and publicly available exploits, this vulnerability allows remote attackers to execute arbitrary code by manipulating the pingAddr parameter. Immediate patching is critical for all organizations using affected Tenda HG9 devices, particularly those in Saudi Arabia's critical infrastructure sectors.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 23, 2026 01:03
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi organizations, particularly: (1) Telecommunications sector (STC, Mobily, Zain) — Tenda routers are commonly deployed in enterprise and ISP networks; (2) Banking and Financial Services (SAMA-regulated institutions) — compromised routers can intercept financial transactions and sensitive data; (3) Government agencies and critical infrastructure operators — unauthorized remote code execution enables lateral movement and network compromise; (4) Healthcare facilities — disruption of network connectivity affects patient care systems; (5) Energy sector (ARAMCO and utilities) — router compromise could facilitate attacks on SCADA/ICS networks. The public exploit availability significantly increases attack likelihood across all sectors.
🏢 Affected Saudi Sectors
Telecommunications (STC, Mobily, Zain) Banking and Financial Services Government and Public Administration Healthcare Energy and Utilities Critical Infrastructure Education Retail and E-commerce
⚖️ Saudi Risk Score (AI)
8.9
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Tenda HG9 devices running firmware version 300001138 in your network using network scanning tools (nmap, Shodan queries)
2. Isolate affected devices from critical network segments if patching cannot be completed immediately
3. Implement network-level access controls restricting access to router management interfaces (port 80/443)
4. Monitor for suspicious ping6 requests to /boaform/formPing6 endpoint

PATCHING GUIDANCE:
1. Download the latest Tenda HG9 firmware from official Tenda support portal
2. Perform firmware upgrade through router's web interface (System Settings > Firmware Upgrade)
3. Verify successful upgrade by checking firmware version in System Information
4. Reset router to factory defaults after upgrade if configuration allows

COMPENSATING CONTROLS (if immediate patching unavailable):
1. Disable remote management access to router web interface
2. Implement firewall rules blocking external access to router ports (80, 443, 8080)
3. Restrict ping6 requests at network perimeter using ACLs
4. Deploy IDS/IPS signatures detecting buffer overflow attempts to /boaform/formPing6

DETECTION RULES:
1. Monitor for HTTP POST requests to /boaform/formPing6 with unusually long pingAddr parameter values (>256 bytes)
2. Alert on any successful remote code execution indicators following ping6 requests
3. Track failed authentication attempts to router management interface
4. Monitor for unexpected process execution on router (SSH access logs, syslog analysis)
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة Tenda HG9 التي تعمل بإصدار البرنامج الثابت 300001138 في شبكتك باستخدام أدوات المسح (nmap، استعلامات Shodan)
2. عزل الأجهزة المتأثرة عن أجزاء الشبكة الحرجة إذا لم يكن التصحيح ممكناً فوراً
3. تطبيق عناصر تحكم الوصول على مستوى الشبكة لتقييد الوصول إلى واجهات إدارة الموجه (المنفذ 80/443)
4. مراقبة طلبات ping6 المريبة إلى نقطة النهاية /boaform/formPing6

إرشادات التصحيح:
1. تحميل أحدث برنامج ثابت لـ Tenda HG9 من بوابة دعم Tenda الرسمية
2. إجراء ترقية البرنامج الثابت من خلال واجهة الويب للموجه (إعدادات النظام > ترقية البرنامج الثابت)
3. التحقق من نجاح الترقية بفحص إصدار البرنامج الثابت في معلومات النظام
4. إعادة تعيين الموجه إلى الإعدادات الافتراضية بعد الترقية إذا سمحت التكوين

عناصر التحكم البديلة (إذا لم يكن التصحيح الفوري متاحاً):
1. تعطيل الوصول الإداري البعيد إلى واجهة الويب للموجه
2. تطبيق قواعد جدار الحماية لحظر الوصول الخارجي إلى منافذ الموجه (80، 443، 8080)
3. تقييد طلبات ping6 على محيط الشبكة باستخدام قوائم التحكم في الوصول
4. نشر توقيعات IDS/IPS للكشف عن محاولات تجاوز السعة إلى /boaform/formPing6

قواعد الكشف:
1. مراقبة طلبات HTTP POST إلى /boaform/formPing6 بقيم معامل pingAddr طويلة بشكل غير عادي (>256 بايت)
2. التنبيه على أي مؤشرات تنفيذ كود بعيد ناجحة بعد طلبات ping6
3. تتبع محاولات المصادقة الفاشلة على واجهة إدارة الموجه
4. مراقبة تنفيذ العمليات غير المتوقعة على الموجه (سجلات وصول SSH، تحليل syslog)
📋 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 activities ECC 2024 A.13.1.3 - Segregation of networks
🔵 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 systems SAMA CSF RS.MI-2 - Incident response and containment
🟡 ISO 27001:2022
ISO 27001:2022 A.12.3.1 - Configuration management ISO 27001:2022 A.14.2.1 - Secure development and change management ISO 27001:2022 A.12.6.1 - Management of technical vulnerabilities ISO 27001:2022 A.8.1.1 - Inventory of assets
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Security patches and updates PCI DSS 11.2 - Vulnerability scanning PCI DSS 1.1 - Firewall configuration standards
📦 Affected Products / CPE 1 entries
tenda:hg9_firmware:300001138
📊 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
EPSS0.08%
Exploit ✓ Yes
Patch ✓ Yes
Published 2026-02-22
Source Feed nvd
Views 5
🇸🇦 Saudi Risk Score
8.9
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
exploit-available CWE-119
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