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Vulnerabilities

CVE-2026-9462

High
CWE-119 — Weakness Type
Published: May 25, 2026  ·  Modified: Jun 1, 2026  ·  Source: NVD
CVSS v3
8.8
🔗 NVD Official
📄 Description (English)

A vulnerability was detected in Edimax EW-7438RPn 1.31. Affected by this vulnerability is the function formWpsProxyEnable of the file /goform/formWpsProxyEnable. The manipulation of the argument submit-url results in stack-based buffer overflow. The attack can be launched remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

🤖 AI Executive Summary

A critical stack-based buffer overflow vulnerability exists in Edimax EW-7438RPn wireless routers (firmware 1.31) affecting the WPS proxy functionality. The vulnerability allows remote attackers to execute arbitrary code by sending a specially crafted request to the /goform/formWpsProxyEnable endpoint. With no patch available and public exploit details emerging, this poses an immediate threat to organizations using these devices in their network infrastructure.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 29, 2026 07:32
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi organizations across multiple sectors: Banking and Financial Services (SAMA-regulated institutions) using these routers for branch connectivity; Government agencies (NCA oversight) relying on Edimax devices for network infrastructure; Telecommunications providers (STC, Mobily) potentially using these devices in network deployments; Healthcare facilities requiring secure network access; Energy sector (ARAMCO and utilities) using these routers in operational networks. The lack of vendor response and public exploit availability elevates the risk substantially for all affected organizations.
🏢 Affected Saudi Sectors
Banking and Financial Services Government and Public Administration Telecommunications Healthcare Energy and Utilities Retail and E-commerce Education
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Edimax EW-7438RPn devices running firmware 1.31 in your network using network scanning tools
2. Isolate affected devices from critical network segments if possible
3. Implement network segmentation to restrict access to the /goform/formWpsProxyEnable endpoint
4. Disable WPS functionality on all affected devices if not required for operations
5. Monitor for suspicious HTTP POST requests to /goform/formWpsProxyEnable with unusual submit-url parameters

COMPENSATING CONTROLS:
1. Deploy Web Application Firewall (WAF) rules to block requests containing buffer overflow payloads to the vulnerable endpoint
2. Implement strict input validation at network perimeter for any traffic destined to these devices
3. Use IDS/IPS signatures to detect exploitation attempts
4. Restrict administrative access to device management interfaces to trusted IP ranges only
5. Enable detailed logging on affected devices and forward logs to SIEM for analysis

DETECTION RULES:
1. Monitor for POST requests to /goform/formWpsProxyEnable with submit-url parameter exceeding 256 bytes
2. Alert on any HTTP 500 errors or device crashes following requests to this endpoint
3. Track firmware version of all Edimax devices; flag version 1.31 for immediate attention
4. Monitor for unexpected process execution or system calls from the web service process

LONG-TERM:
1. Replace affected Edimax EW-7438RPn devices with alternative vendors offering active security support
2. Establish vendor security response SLA requirements for future device procurement
3. Implement regular firmware update procedures and vendor communication monitoring
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة Edimax EW-7438RPn التي تعمل بالإصدار 1.31 في شبكتك باستخدام أدوات المسح
2. عزل الأجهزة المتأثرة عن القطاعات الحرجة في الشبكة إن أمكن
3. تطبيق تقسيم الشبكة لتقييد الوصول إلى نقطة النهاية /goform/formWpsProxyEnable
4. تعطيل وظيفة WPS على جميع الأجهزة المتأثرة إذا لم تكن مطلوبة للعمليات
5. مراقبة طلبات HTTP POST المريبة إلى /goform/formWpsProxyEnable بمعاملات submit-url غير عادية

الضوابط التعويضية:
1. نشر قواعد جدار حماية تطبيقات الويب (WAF) لحجب الطلبات التي تحتوي على حمولات تجاوز المخزن المؤقت
2. تطبيق التحقق الصارم من المدخلات على محيط الشبكة
3. استخدام توقيعات IDS/IPS للكشف عن محاولات الاستغلال
4. تقييد الوصول الإداري إلى واجهات إدارة الأجهزة على نطاقات IP موثوقة فقط
5. تفعيل التسجيل التفصيلي على الأجهزة المتأثرة وإعادة توجيه السجلات إلى SIEM

قواعد الكشف:
1. مراقبة طلبات POST إلى /goform/formWpsProxyEnable مع معامل submit-url يتجاوز 256 بايت
2. تنبيهات على أخطاء HTTP 500 أو تعطل الجهاز بعد الطلبات إلى هذه النقطة
3. تتبع إصدار البرنامج الثابت لجميع أجهزة Edimax؛ وضع علامة على الإصدار 1.31 للاهتمام الفوري
4. مراقبة تنفيذ العمليات غير المتوقعة من عملية خدمة الويب

المدى الطويل:
1. استبدال أجهزة Edimax EW-7438RPn المتأثرة بموردين بدائل يقدمون دعماً أمنياً نشطاً
2. إنشاء متطلبات اتفاقية مستوى الخدمة لاستجابة أمان البائع للمشتريات المستقبلية
3. تطبيق إجراءات تحديث البرنامج الثابت المنتظمة ومراقبة التواصل مع البائع
📋 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.13.1.1 - Network security perimeter
🔵 SAMA CSF
SAMA CSF ID.RA-1 - Asset Management and Inventory SAMA CSF PR.IP-12 - Security Patch Management SAMA CSF DE.CM-1 - Network Monitoring and Detection SAMA CSF RS.MI-2 - Incident Response and Recovery
🟡 ISO 27001:2022
ISO 27001:2022 A.12.3.1 - Segregation of networks ISO 27001:2022 A.14.2.1 - Secure development policy and procedures 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
📊 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 2026-05-25
Source Feed nvd
🇸🇦 Saudi Risk Score
9.2
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
CWE-119
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