📄 Description (English)
An insufficient input validation vulnerability in NETGEAR Orbi devices'
DHCPv6 functionality allows network adjacent attackers authenticated
over WiFi or on LAN to execute OS command injections on the router.
DHCPv6 is not enabled by default.
🤖 AI Executive Summary
A critical input validation vulnerability in NETGEAR Orbi mesh routers (RBR/RBS series) allows authenticated WiFi/LAN users to execute arbitrary OS commands via DHCPv6 protocol exploitation. While DHCPv6 is disabled by default, organizations that have explicitly enabled this feature face immediate risk of router compromise and potential lateral network movement. Patch availability exists but requires immediate deployment across affected infrastructure.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 26, 2026 16:01
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations utilizing NETGEAR Orbi mesh networks face significant risk, particularly: (1) Banking sector (SAMA-regulated institutions) using these routers for branch/office connectivity risk unauthorized access to financial systems; (2) Government agencies (NCA oversight) deploying Orbi devices in classified/sensitive networks could experience data exfiltration; (3) Healthcare providers (MOH-regulated) using Orbi for hospital networks risk patient data compromise; (4) Energy sector (ARAMCO, SEC-regulated utilities) using these routers in operational technology networks face critical infrastructure threats; (5) Telecom providers (STC, Mobily, Zain) using Orbi in customer premises equipment deployments risk widespread customer network compromise. The authentication requirement (WiFi/LAN access) limits exposure but insider threats and compromised employee devices present realistic attack vectors in Saudi organizations.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Healthcare and Medical Services
Energy and Utilities
Telecommunications
Education
Retail and E-commerce
Manufacturing
🎯 MITRE ATT&CK Techniques
T1190 - Exploit Public-Facing Application (DHCPv6 protocol exploitation)
T1059 - Command and Scripting Interpreter (OS command injection)
T1021 - Remote Services (unauthorized router access)
T1078 - Valid Accounts (authenticated WiFi/LAN access)
T1548 - Abuse Elevation Control Mechanism (privilege escalation via command injection)
T1562 - Impair Defenses (potential disabling of router security features)
T1570 - Lateral Tool Transfer (using compromised router for network movement)
⚖️ Saudi Risk Score (AI)
7.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all NETGEAR Orbi devices (RBR750/840/850/860, RBS750/840/850/860, RBRE950/960) in your network inventory
2. Check DHCPv6 status: Access router admin panel (192.168.1.1) → Advanced → IPv6 Settings → verify DHCPv6 is DISABLED
3. If DHCPv6 is enabled, disable it immediately and document business justification
4. Review WiFi access logs for unauthorized connections in past 90 days
PATCHING GUIDANCE:
1. Download latest firmware from NETGEAR support portal for your specific model
2. Schedule maintenance window (off-peak hours) for firmware updates
3. Backup router configuration before patching
4. Update all affected Orbi units (router + satellites) sequentially
5. Verify connectivity and DHCPv6 settings post-patch
6. Test critical network services (DNS, DHCP, internet access)
COMPENSATING CONTROLS (if patching delayed):
1. Restrict WiFi access to known MAC addresses only
2. Implement strong WiFi encryption (WPA3 preferred, minimum WPA2-AES)
3. Change default admin credentials to complex passwords (16+ characters)
4. Disable remote management access
5. Implement network segmentation: isolate Orbi management traffic
6. Monitor router logs for suspicious DHCPv6 activity
DETECTION RULES:
1. Monitor for DHCPv6 packets with unusual payload sizes (>1500 bytes)
2. Alert on DHCPv6 requests containing shell metacharacters (;|&$`)
3. Track failed SSH/Telnet login attempts to router management interface
4. Monitor for unexpected process execution on router (via syslog if available)
5. Baseline and alert on abnormal router CPU/memory usage
6. Log all firmware version changes and admin login events
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة NETGEAR Orbi (RBR750/840/850/860، RBS750/840/850/860، RBRE950/960) في جرد شبكتك
2. التحقق من حالة DHCPv6: الوصول إلى لوحة تحكم الموجه (192.168.1.1) → متقدم → إعدادات IPv6 → التحقق من تعطيل DHCPv6
3. إذا كان DHCPv6 مفعلاً، قم بتعطيله فوراً وتوثيق المبرر التجاري
4. مراجعة سجلات الوصول إلى WiFi للاتصالات غير المصرح بها في آخر 90 يوماً
إرشادات التصحيح:
1. تحميل أحدث البرنامج الثابت من بوابة دعم NETGEAR لطرازك المحدد
2. جدولة نافذة صيانة (ساعات غير ذروة) لتحديثات البرنامج الثابت
3. نسخ احتياطي من إعدادات الموجه قبل التصحيح
4. تحديث جميع وحدات Orbi المتأثرة (الموجه + الأقمار) بالتسلسل
5. التحقق من الاتصال وإعدادات DHCPv6 بعد التصحيح
6. اختبار الخدمات الشبكية الحرجة (DNS، DHCP، الوصول إلى الإنترنت)
الضوابط البديلة (إذا تأخر التصحيح):
1. تقييد الوصول إلى WiFi بعناوين MAC معروفة فقط
2. تطبيق تشفير WiFi قوي (WPA3 مفضل، الحد الأدنى WPA2-AES)
3. تغيير بيانات اعتماد المسؤول الافتراضية إلى كلمات مرور معقدة (16+ أحرف)
4. تعطيل الوصول الإداري البعيد
5. تطبيق تقسيم الشبكة: عزل حركة إدارة Orbi
6. مراقبة سجلات الموجه للنشاط المريب في DHCPv6
قواعد الكشف:
1. مراقبة حزم DHCPv6 بأحجام حمولة غير عادية (>1500 بايت)
2. تنبيه على طلبات DHCPv6 التي تحتوي على أحرف metacharacters للقشرة (;|&$`)
3. تتبع محاولات تسجيل الدخول الفاشلة SSH/Telnet لواجهة إدارة الموجه
4. مراقبة تنفيذ العمليات غير المتوقعة على الموجه (عبر syslog إن أمكن)
5. خط أساس وتنبيه على استخدام CPU/الذاكرة غير الطبيعي للموجه
6. تسجيل جميع تغييرات إصدار البرنامج الثابت وأحداث تسجيل دخول المسؤول
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information Security Policies (network device security requirements)
A.6.1.2 - Access Control (authentication and authorization for network devices)
A.8.1.1 - Cryptography (secure communication protocols)
A.12.2.1 - Change Management (firmware update procedures)
A.12.4.1 - Event Logging (router activity monitoring and logging)
🔵 SAMA CSF
ID.AM-2 - Asset Management (inventory of network infrastructure)
PR.AC-1 - Access Control Policy (network device access restrictions)
PR.PT-2 - Protective Technology (secure configuration of network devices)
DE.CM-1 - Detection and Analysis (monitoring network device logs)
RS.RP-1 - Response Planning (incident response for compromised routers)
🟡 ISO 27001:2022
A.5.1 - Management Direction (information security policy for network devices)
A.6.1 - Internal Organization (access control to network infrastructure)
A.8.1 - Cryptographic Controls (secure protocols for device management)
A.12.2 - Change Management (firmware patching procedures)
A.12.4 - Logging (audit trails for network device activities)
🟣 PCI DSS v4.0.1
Requirement 1.1 - Firewall Configuration Standards (network segmentation)
Requirement 2.1 - Default Passwords (change default router credentials)
Requirement 6.2 - Security Patches (timely firmware updates)
Requirement 10.2 - User Access Logging (router admin access logs)
Requirement 10.3 - Logging of Access to Cardholder Data (network monitoring)
🔗 References & Sources 13
🔗
https://kb.netgear.com/000070442/January-2026-NETGEAR-Security-Advisory
a2826606-91e7-4eb6-899e-8484bd4575d5
Patch
Vendor Advisory
🔗
https://www.netgear.com/support/product/rbr750
a2826606-91e7-4eb6-899e-8484bd4575d5
Patch
Product
🔗
https://www.netgear.com/support/product/rbr840
a2826606-91e7-4eb6-899e-8484bd4575d5
Patch
Product
🔗
https://www.netgear.com/support/product/rbr850
a2826606-91e7-4eb6-899e-8484bd4575d5
Patch
Product
🔗
https://www.netgear.com/support/product/rbr860
a2826606-91e7-4eb6-899e-8484bd4575d5
Patch
Product
🔗
https://www.netgear.com/support/product/rbre950
a2826606-91e7-4eb6-899e-8484bd4575d5
Patch
Product
🔗
https://www.netgear.com/support/product/rbre960
a2826606-91e7-4eb6-899e-8484bd4575d5
Patch
Product
🔗
https://www.netgear.com/support/product/rbs750
a2826606-91e7-4eb6-899e-8484bd4575d5
Patch
Product
🔗
https://www.netgear.com/support/product/rbs840
a2826606-91e7-4eb6-899e-8484bd4575d5
Patch
Product
🔗
https://www.netgear.com/support/product/rbs850
a2826606-91e7-4eb6-899e-8484bd4575d5
Patch
Product
🔗
https://www.netgear.com/support/product/rbs860
a2826606-91e7-4eb6-899e-8484bd4575d5
Patch
Product
🔗
https://www.netgear.com/support/product/rbse950
a2826606-91e7-4eb6-899e-8484bd4575d5
Patch
Product
🔗
https://www.netgear.com/support/product/rbse960
a2826606-91e7-4eb6-899e-8484bd4575d5
Patch
Product
📦 Affected Products / CPE 12 entries
netgear:rbr750_firmware
netgear:rbr840_firmware
netgear:rbr850_firmware
netgear:rbr860_firmware
netgear:rbs750_firmware
netgear:rbs840_firmware
netgear:rbs850_firmware
netgear:rbs860_firmware
netgear:rbre950_firmware
netgear:rbre960_firmware
netgear:rbse950_firmware
netgear:rbse960_firmware