📄 Description (English)
A weakness has been identified in Belkin F9K1122 1.00.33. The impacted element is the function formSetPassword of the file /goform/formSetPassword of the component Parameter Handler. This manipulation of the argument webpage causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. 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 Belkin F9K1122 wireless router firmware version 1.00.33, affecting the password configuration function. The vulnerability allows remote unauthenticated attackers to execute arbitrary code with device privileges. With public exploit availability and no vendor patch, this poses immediate risk to organizations using this router model in their network infrastructure.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 23, 2026 13:57
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi organizations across multiple sectors: Banking sector (SAMA-regulated institutions) using Belkin routers for branch connectivity; Government agencies (NCA oversight) relying on this hardware for network infrastructure; Healthcare facilities using these routers for patient data networks; Energy sector (ARAMCO and utilities) with operational technology networks; Telecommunications providers (STC, Mobily) using this equipment in network deployments. The lack of authentication requirement and public exploit availability make this particularly dangerous for critical infrastructure.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Healthcare and Medical Facilities
Energy and Utilities
Telecommunications
Critical Infrastructure
Education
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Belkin F9K1122 devices running firmware 1.00.33 in your network using asset inventory tools
2. Isolate affected devices from critical networks or place behind additional firewall rules restricting access to management interfaces
3. Disable remote management features on the device if enabled
4. Change default credentials and implement strong administrative passwords
5. Monitor for suspicious access attempts to the /goform/formSetPassword endpoint
PATCHING GUIDANCE:
1. Check Belkin support portal for firmware updates beyond 1.00.33
2. If no patch available, plan device replacement with alternative vendors
3. Document all affected devices for compliance tracking
COMPENSATING CONTROLS:
1. Implement network segmentation isolating router management interfaces
2. Deploy Web Application Firewall (WAF) rules blocking POST requests to /goform/formSetPassword with oversized parameters
3. Enable logging on network access to router management ports (80, 443, 8080)
4. Implement IDS/IPS signatures detecting buffer overflow attempts
5. Restrict administrative access to specific IP ranges only
DETECTION RULES:
1. Monitor for HTTP POST requests to /goform/formSetPassword with webpage parameter exceeding 256 bytes
2. Alert on multiple failed authentication attempts to router management interface
3. Track firmware version changes on affected devices
4. Monitor for unexpected process execution or system crashes on router
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة Belkin F9K1122 التي تعمل بالإصدار 1.00.33 في شبكتك
2. عزل الأجهزة المتأثرة عن الشبكات الحرجة أو وضعها خلف قواعد جدار حماية إضافية
3. تعطيل ميزات الإدارة البعيدة إن كانت مفعلة
4. تغيير بيانات الاعتماد الافتراضية وتطبيق كلمات مرور إدارية قوية
5. مراقبة محاولات الوصول المريبة إلى نقطة النهاية /goform/formSetPassword
إرشادات التصحيح:
1. التحقق من بوابة دعم Belkin للحصول على تحديثات البرنامج الثابت
2. إذا لم يكن هناك تصحيح متاح، خطط لاستبدال الجهاز بموردين بدلاء
3. توثيق جميع الأجهزة المتأثرة لتتبع الامتثال
الضوابط البديلة:
1. تطبيق تقسيم الشبكة لعزل واجهات إدارة جهاز التوجيه
2. نشر قواعد جدار تطبيقات الويب لحجب طلبات POST بمعاملات كبيرة الحجم
3. تفعيل السجلات على الوصول إلى منافذ إدارة جهاز التوجيه
4. تطبيق توقيعات IDS/IPS للكشف عن محاولات تجاوز السعة
5. تقييد الوصول الإداري إلى نطاقات IP محددة فقط
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.8.1 - Asset Management and Inventory Control
ECC 2024 A.8.2 - Information Security Perimeter
ECC 2024 A.12.6.1 - Management of Technical Vulnerabilities
ECC 2024 A.14.2.1 - Secure Development Policy
🔵 SAMA CSF
SAMA CSF ID.AM-1 - Physical Devices and Software Inventory
SAMA CSF PR.IP-12 - Software, Firmware, and Information Updates
SAMA CSF DE.CM-8 - Vulnerability Scans
SAMA CSF RS.MI-2 - Incidents are mitigated
🟡 ISO 27001:2022
ISO 27001:2022 A.5.19 - Secure development, test and acceptance environments
ISO 27001:2022 A.8.1 - Asset management
ISO 27001:2022 A.8.2 - Information security perimeter
ISO 27001:2022 A.12.6.1 - Management of technical vulnerabilities
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Security patches and updates
PCI DSS 11.2 - Vulnerability scanning
🔗 References & Sources 4
🔗
https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_154/README.md
cna@vuldb.com
Exploit
Third Party Advisory
🔗
https://vuldb.com/submit/779124
cna@vuldb.com
Third Party Advisory
VDB Entry
🔗
https://vuldb.com/vuln/353966
cna@vuldb.com
Third Party Advisory
VDB Entry
🔗
https://vuldb.com/vuln/353966/cti
cna@vuldb.com
Permissions Required
VDB Entry
📦 Affected Products / CPE 1 entries
belkin:f9k1122_firmware:1.00.33