📧 info@ciso.sa | 📱 +966550939344 | Riyadh, Kingdom of Saudi Arabia
🔧 Scheduled Maintenance — Saturday 2:00-4:00 AM AST. Some features may be temporarily unavailable.    ●   
💎
Pro Plan 50% Off Unlock all AI features, unlimited reports, and priority support. Upgrade
Search Center
ESC to close
Global apt Financial Services, Banking HIGH 5h Global vulnerability Technology and Software Development HIGH 8h Global vulnerability Government and Federal Agencies CRITICAL 8h Global supply_chain Software Development and Open-Source Ecosystems HIGH 8h Global vulnerability Enterprise Software/SaaS MEDIUM 9h Global supply_chain Software Development HIGH 9h Global general Insurance/Risk Management HIGH 9h Global data_breach Enterprise Software / Information Technology CRITICAL 10h Global vulnerability Technology/Software CRITICAL 12h Global malware Social Media and Consumer Technology HIGH 12h Global apt Financial Services, Banking HIGH 5h Global vulnerability Technology and Software Development HIGH 8h Global vulnerability Government and Federal Agencies CRITICAL 8h Global supply_chain Software Development and Open-Source Ecosystems HIGH 8h Global vulnerability Enterprise Software/SaaS MEDIUM 9h Global supply_chain Software Development HIGH 9h Global general Insurance/Risk Management HIGH 9h Global data_breach Enterprise Software / Information Technology CRITICAL 10h Global vulnerability Technology/Software CRITICAL 12h Global malware Social Media and Consumer Technology HIGH 12h Global apt Financial Services, Banking HIGH 5h Global vulnerability Technology and Software Development HIGH 8h Global vulnerability Government and Federal Agencies CRITICAL 8h Global supply_chain Software Development and Open-Source Ecosystems HIGH 8h Global vulnerability Enterprise Software/SaaS MEDIUM 9h Global supply_chain Software Development HIGH 9h Global general Insurance/Risk Management HIGH 9h Global data_breach Enterprise Software / Information Technology CRITICAL 10h Global vulnerability Technology/Software CRITICAL 12h Global malware Social Media and Consumer Technology HIGH 12h
Vulnerabilities

CVE-2026-9380

High
CWE-119 — Weakness Type
Published: May 24, 2026  ·  Modified: May 31, 2026  ·  Source: NVD
CVSS v3
8.8
🔗 NVD Official
📄 Description (English)

A security vulnerability has been detected in Edimax BR-6675nD 1.12. Affected is the function formL2TPSetup of the file /goform/formL2TPSetup of the component POST Request Handler. Such manipulation of the argument L2TPUserName leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

🤖 AI Executive Summary

A critical buffer overflow vulnerability exists in Edimax BR-6675nD router firmware version 1.12 affecting the L2TP configuration function. The vulnerability allows remote attackers to execute arbitrary code by sending a specially crafted POST request with an oversized L2TPUserName parameter. With no patch available and public exploit disclosure, this poses an immediate threat to organizations using this router model for network connectivity.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 27, 2026 13:45
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability directly impacts Saudi organizations relying on Edimax BR-6675nD routers for network infrastructure, particularly affecting: (1) Banking sector and SAMA-regulated institutions using these devices for branch connectivity or VPN termination; (2) Government agencies and NCA-monitored entities utilizing L2TP for secure communications; (3) Telecom providers (STC, Mobily, Zain) and ISPs managing customer-facing network equipment; (4) Healthcare facilities and SEHA-connected organizations using these routers for remote access; (5) Energy sector and ARAMCO-affiliated companies with distributed network infrastructure. The lack of vendor response and public exploit availability elevates risk significantly for all affected sectors.
🏢 Affected Saudi Sectors
Banking and Financial Services Government and Public Administration Telecommunications Healthcare and Medical Services Energy and Utilities Education Retail and E-commerce
⚖️ Saudi Risk Score (AI)
8.9
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Edimax BR-6675nD devices running firmware 1.12 in your network using asset discovery tools
2. Isolate affected routers from untrusted networks or disable remote management capabilities immediately
3. Disable L2TP functionality if not actively required for business operations
4. Implement network segmentation to restrict access to router management interfaces

PATCHING GUIDANCE:
1. Check Edimax support portal for firmware updates beyond version 1.12 (vendor unresponsive but updates may exist)
2. If no official patch available, consider replacing affected devices with alternative vendors (TP-Link, Cisco, Fortinet)
3. Document all affected devices and create replacement timeline

COMPENSATING CONTROLS:
1. Deploy Web Application Firewall (WAF) rules to block POST requests to /goform/formL2TPSetup with oversized L2TPUserName parameters
2. Implement strict input validation at network perimeter filtering requests exceeding 256 bytes in L2TP username fields
3. Enable router access logs and monitor for suspicious POST requests to vulnerable endpoints
4. Restrict router management access to whitelisted IP addresses only
5. Implement network intrusion detection signatures for buffer overflow attempts

DETECTION RULES:
1. Monitor for POST requests to /goform/formL2TPSetup with L2TPUserName parameter exceeding 128 characters
2. Alert on any remote access attempts to router management interfaces (ports 80, 443, 8080)
3. Track failed L2TP authentication attempts followed by system crashes or reboots
4. Log and analyze any unexpected process execution on router devices
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة Edimax BR-6675nD التي تعمل بالإصدار 1.12 في شبكتك باستخدام أدوات اكتشاف الأصول
2. عزل أجهزة التوجيه المتأثرة عن الشبكات غير الموثوقة أو تعطيل قدرات الإدارة البعيدة فوراً
3. تعطيل وظيفة L2TP إذا لم تكن مطلوبة بنشاط للعمليات التجارية
4. تنفيذ تقسيم الشبكة لتقييد الوصول إلى واجهات إدارة جهاز التوجيه

إرشادات التصحيح:
1. التحقق من بوابة دعم Edimax للحصول على تحديثات البرامج الثابتة بعد الإصدار 1.12
2. إذا لم يتوفر تصحيح رسمي، فكر في استبدال الأجهزة المتأثرة بموردين بدلاء
3. توثيق جميع الأجهزة المتأثرة وإنشاء جدول زمني للاستبدال

الضوابط التعويضية:
1. نشر قواعد جدار حماية تطبيقات الويب لحجب طلبات POST إلى /goform/formL2TPSetup برموز مستخدم L2TP مفرطة الحجم
2. تنفيذ التحقق الصارم من المدخلات على محيط الشبكة لتصفية الطلبات التي تتجاوز 256 بايت في حقول اسم مستخدم L2TP
3. تفعيل سجلات الوصول إلى جهاز التوجيه ومراقبة طلبات POST المريبة إلى نقاط النهاية الضعيفة
4. تقييد وصول إدارة جهاز التوجيه إلى عناوين IP المدرجة في القائمة البيضاء فقط
5. تنفيذ توقيعات كشف الاختراق في الشبكة لمحاولات تجاوز المخزن المؤقت

قواعد الكشف:
1. مراقبة طلبات POST إلى /goform/formL2TPSetup مع معامل L2TPUserName يتجاوز 128 حرفاً
2. التنبيه على أي محاولات وصول بعيدة إلى واجهات إدارة جهاز التوجيه
3. تتبع محاولات مصادقة L2TP الفاشلة متبوعة بأعطال النظام أو إعادة التشغيل
4. تسجيل وتحليل أي تنفيذ عملية غير متوقع على أجهزة التوجيه
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Network security perimeter controls ECC 2024 A.5.2.1 - Access control to network resources ECC 2024 A.6.2.1 - Vulnerability management and patching ECC 2024 A.8.2.3 - Monitoring and logging of network devices
🔵 SAMA CSF
SAMA CSF ID.BE-1 - Asset management and inventory SAMA CSF PR.AC-1 - Access control policies SAMA CSF PR.IP-12 - Vulnerability management SAMA CSF DE.CM-1 - Network monitoring and detection
🟡 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.8.23 - Information security incident management
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Security patches and updates PCI DSS 11.2 - Vulnerability scanning and assessment
📊 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
EPSS0.04%
Exploit No
Patch ✗ No
Published 2026-05-24
Source Feed nvd
🇸🇦 Saudi Risk Score
8.9
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
CWE-119
Share this CVE
📣 Found this valuable?
Share it with your cybersecurity network
in LinkedIn 𝕏 X / Twitter 💬 WhatsApp ✈ Telegram
🍪 Privacy Preferences
CISO Consulting — Compliant with Saudi Personal Data Protection Law (PDPL)
We use cookies and similar technologies to provide the best experience on our platform. You can choose which types you accept.
🔒
Essential Always On
Required for the website to function properly. Cannot be disabled.
📋 Sessions, CSRF tokens, authentication, language preferences
📊
Analytics
Help us understand how visitors use the site and improve performance.
📋 Page views, session duration, traffic sources, performance metrics
⚙️
Functional
Enable enhanced features like content personalization and preferences.
📋 Dark/light theme, font size, custom dashboards, saved filters
📣
Marketing
Used to deliver content and ads relevant to your interests.
📋 Campaign tracking, retargeting, social media analytics
Privacy Policy →
CISO AI Assistant
Ask anything · Documents · Support
🔐

Introduce Yourself

Enter your details to access the full assistant

Your info is private and never shared
💬
CyberAssist
Online · responds in seconds
5 / 5
🔐 Verify Your Identity

Enter your email to receive a verification code before submitting a support request.

Enter to send · / for commands 0 / 2000
CISO AI · Powered by Anthropic Claude
✦ Quick Survey Help Us Improve CISO Consulting Your feedback shapes the future of our platform — takes less than 2 minutes.
⚠ Please answer this question to continue

How would you rate your overall experience with our platform?

Rate from 1 (poor) to 5 (excellent)

🎉
Thank you!
Your response has been recorded.