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Vulnerabilities

CVE-2026-7218

High
CWE-119 — Weakness Type
Published: Apr 28, 2026  ·  Modified: May 5, 2026  ·  Source: NVD
CVSS v3
7.2
🔗 NVD Official
📄 Description (English)

A vulnerability was detected in Totolink N300RT 3.4.0-B20250430. The impacted element is the function is_cmd_string_valid of the file /boafrm/formWsc of the component libapmib.so. Performing a manipulation of the argument localPin results in buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used.

🤖 AI Executive Summary

A critical buffer overflow vulnerability exists in Totolik N300RT router firmware (version 3.4.0-B20250430) affecting the WSC configuration function. The vulnerability allows remote attackers to execute arbitrary code by manipulating the localPin parameter, potentially compromising network infrastructure. With public exploit information available and no patch currently released, this poses immediate risk to organizations using this router model.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 8, 2026 10:18
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi telecommunications infrastructure (STC, Mobily, Zain), government agencies (NCA, CITC), and enterprise networks using Totolik N300RT routers as edge devices. Banking sector organizations and healthcare facilities relying on these routers for network segmentation face elevated risk of lateral movement and data exfiltration. ARAMCO and critical infrastructure operators using this equipment in operational technology networks are at significant risk. The vulnerability enables complete device compromise and potential pivot points into internal networks.
🏢 Affected Saudi Sectors
Telecommunications (STC, Mobily, Zain) Government (NCA, CITC, Ministry of Interior) Banking and Financial Services (SAMA regulated institutions) Healthcare (MOH facilities) Energy (ARAMCO, power utilities) Critical Infrastructure Enterprise Networks
⚖️ Saudi Risk Score (AI)
8.7
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Totolik N300RT devices in your network using asset discovery tools and SNMP scanning
2. Isolate affected routers from critical network segments if replacement is not immediately possible
3. Implement network segmentation to limit router access to trusted administrative networks only
4. Enable router access logs and monitor for suspicious WSC configuration attempts

PATCHING GUIDANCE:
1. Contact Totolik support for firmware updates beyond 3.4.0-B20250430
2. If no patch is available, plan immediate replacement with alternative router models from vendors with active security support
3. Prioritize replacement in critical infrastructure and banking environments

COMPENSATING CONTROLS:
1. Implement Web Application Firewall (WAF) rules to block malformed WSC requests to /boafrm/formWsc endpoint
2. Restrict administrative access to routers via IP whitelisting and VPN-only access
3. Disable WPS (Wi-Fi Protected Setup) functionality if not required
4. Deploy intrusion detection signatures for buffer overflow attempts targeting libapmib.so
5. Implement network-based detection for suspicious outbound connections from router management interfaces

DETECTION RULES:
1. Monitor for HTTP POST requests to /boafrm/formWsc with localPin parameters exceeding 128 bytes
2. Alert on unexpected process execution from router web service processes
3. Track failed authentication attempts followed by successful administrative access
4. Monitor for firmware modification timestamps on affected devices
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة Totolik N300RT في شبكتك باستخدام أدوات اكتشاف الأصول وفحص SNMP
2. عزل أجهزة التوجيه المتأثرة عن قطاعات الشبكة الحرجة إذا لم يكن الاستبدال ممكناً فوراً
3. تنفيذ تقسيم الشبكة لتحديد وصول جهاز التوجيه إلى شبكات إدارية موثوقة فقط
4. تفعيل سجلات وصول جهاز التوجيه ومراقبة محاولات تكوين WSC المريبة

إرشادات التصحيح:
1. الاتصال بدعم Totolik للحصول على تحديثات البرامج الثابتة بعد 3.4.0-B20250430
2. إذا لم يكن هناك تصحيح متاح، خطط للاستبدال الفوري بأجهزة توجيه بديلة من بائعين لديهم دعم أمان نشط
3. أولويات الاستبدال في البيئات البنية التحتية الحرجة والمصرفية

الضوابط التعويضية:
1. تنفيذ قواعد جدار حماية تطبيقات الويب (WAF) لحجب طلبات WSC المشوهة إلى نقطة نهاية /boafrm/formWsc
2. تقييد وصول المسؤولين إلى أجهزة التوجيه عبر القائمة البيضاء للعناوين وإمكانية الوصول عبر VPN فقط
3. تعطيل وظيفة WPS (Wi-Fi Protected Setup) إذا لم تكن مطلوبة
4. نشر توقيعات كشف الاختراق لمحاولات تجاوز المخزن المؤقت التي تستهدف libapmib.so
5. تنفيذ الكشف القائم على الشبكة للاتصالات الصادرة المريبة من واجهات إدارة جهاز التوجيه

قواعد الكشف:
1. مراقبة طلبات HTTP POST إلى /boafrm/formWsc مع معاملات localPin تتجاوز 128 بايت
2. تنبيه عند تنفيذ عملية غير متوقعة من عمليات خدمة الويب لجهاز التوجيه
3. تتبع محاولات المصادقة الفاشلة متبوعة بوصول إداري ناجح
4. مراقبة طوابع زمن تعديل البرامج الثابتة على الأجهزة المتأثرة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.8.1 - Asset Management and Inventory Control ECC 2024 A.8.2 - Configuration Management ECC 2024 A.12.6 - Management of Technical Vulnerabilities ECC 2024 A.14.2 - System Development and Change Management
🔵 SAMA CSF
SAMA CSF ID.AM-1 - Physical Devices and Software Assets SAMA CSF PR.DS-6 - Integrity Checking Mechanisms SAMA CSF DE.CM-1 - Network Monitoring SAMA CSF RS.MI-2 - Incidents are mitigated
🟡 ISO 27001:2022
ISO 27001:2022 A.5.19 - Addressing information security in supplier relationships ISO 27001:2022 A.8.1 - Inventory of assets ISO 27001:2022 A.8.2 - Ownership of assets ISO 27001:2022 A.8.6 - Management of technical vulnerabilities
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Ensure security patches are installed within one month of release PCI DSS 11.2 - Run automated vulnerability scans quarterly
📊 CVSS Score
7.2
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredH — High
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityH — High
IntegrityH — High
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score7.2
CWECWE-119
EPSS0.07%
Exploit No
Patch ✗ No
Published 2026-04-28
Source Feed nvd
🇸🇦 Saudi Risk Score
8.7
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
CWE-119
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