📄 Description (English)
Samsung Mobile Devices Out-of-Bounds Read Vulnerability — Samsung mobile devices contain an out-of-bounds read vulnerability within the modem interface driver due to a lack of boundary checking of a buffer in set_skb_priv(), leading to remote code execution by dereference of an invalid function pointer.
🤖 AI Executive Summary
CVE-2021-25487 is a critical out-of-bounds read vulnerability in Samsung mobile device modem drivers affecting set_skb_priv() function, enabling remote code execution through invalid function pointer dereference. With a CVSS score of 9.0 and publicly available exploits, this poses an immediate threat to Samsung device users across Saudi Arabia. Patching is urgently required as the vulnerability allows unauthenticated remote attackers to execute arbitrary code on affected devices.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 20, 2026 06:38
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability critically impacts Saudi Arabia's mobile user base, particularly affecting government employees, banking sector staff, and healthcare professionals using Samsung devices. ARAMCO and other critical infrastructure operators relying on Samsung mobile devices for operational communications face elevated risk. Telecom operators (STC, Mobily, Zain) managing Samsung device fleets are at risk of network compromise. The vulnerability enables attackers to establish persistent access to sensitive corporate and personal data, potentially compromising SAMA-regulated financial communications and NCA-monitored government systems.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Healthcare and Medical Services
Energy and Utilities (ARAMCO)
Telecommunications (STC, Mobily, Zain)
Defense and Security
Critical Infrastructure Operators
🎯 MITRE ATT&CK Techniques
T1203 - Exploitation for Client Execution
T1055 - Process Injection
T1548 - Abuse of Elevation Control Mechanism
T1559 - Inter-Process Communication
T1559.001 - Inter-Process Communication: Component Object Model
T1190 - Exploit Public-Facing Application
T1195 - Supply Chain Compromise (modem driver distribution)
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Samsung devices in your organization using inventory management tools
2. Disable non-essential network connectivity on affected Samsung devices until patching is complete
3. Implement network segmentation to isolate Samsung devices from critical systems
4. Alert users to avoid untrusted networks and disable auto-connect features
PATCHING GUIDANCE:
1. Check Samsung Security Updates page for device-specific patches (grouped by model and Android version)
2. Deploy patches through Mobile Device Management (MDM) solutions with mandatory enforcement
3. Prioritize patching for devices accessing financial systems, government networks, or healthcare data
4. Verify patch installation through MDM compliance reporting
COMPENSATING CONTROLS (if immediate patching unavailable):
1. Enforce strict firewall rules limiting modem interface traffic
2. Implement application-level controls restricting network access
3. Deploy Mobile Threat Defense (MTD) solutions with behavioral analysis
4. Monitor for suspicious process execution and memory access patterns
DETECTION RULES:
1. Monitor for unexpected kernel crashes or modem driver restarts
2. Alert on unusual network traffic from modem interface (non-standard ports/protocols)
3. Detect attempts to load unsigned kernel modules or exploit payloads
4. Track failed buffer operations and memory access violations in modem logs
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة Samsung في مؤسستك باستخدام أدوات إدارة المخزون
2. تعطيل الاتصال بالشبكة غير الضروري على أجهزة Samsung المتأثرة حتى اكتمال التصحيح
3. تنفيذ تقسيم الشبكة لعزل أجهزة Samsung عن الأنظمة الحرجة
4. تنبيه المستخدمين لتجنب الشبكات غير الموثوقة وتعطيل ميزات الاتصال التلقائي
إرشادات التصحيح:
1. التحقق من صفحة تحديثات أمان Samsung للحصول على التصحيحات الخاصة بالجهاز (مجمعة حسب الطراز وإصدار Android)
2. نشر التصحيحات من خلال حلول إدارة الأجهزة المحمولة (MDM) مع فرض إلزامي
3. إعطاء الأولوية لتصحيح الأجهزة التي تصل إلى الأنظمة المالية والشبكات الحكومية أو بيانات الرعاية الصحية
4. التحقق من تثبيت التصحيح من خلال تقارير الامتثال في MDM
الضوابط البديلة (إذا لم يكن التصحيح الفوري متاحاً):
1. فرض قواعد جدار الحماية الصارمة التي تحد من حركة مرور واجهة المودم
2. تنفيذ ضوابط على مستوى التطبيق تقيد الوصول إلى الشبكة
3. نشر حلول الدفاع ضد التهديدات المحمولة (MTD) مع التحليل السلوكي
4. مراقبة محاولات تنفيذ العمليات المريبة وأنماط الوصول إلى الذاكرة
قواعد الكشف:
1. مراقبة أعطال النواة غير المتوقعة أو إعادة تشغيل برنامج تشغيل المودم
2. التنبيه على حركة المرور غير العادية من واجهة المودم (المنافذ/البروتوكولات غير القياسية)
3. الكشف عن محاولات تحميل وحدات النواة غير الموقعة أو حمولات الاستغلال
4. تتبع عمليات المخزن المؤقت الفاشلة وانتهاكات الوصول إلى الذاكرة في سجلات المودم
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information Security Policies (device security requirements)
A.6.1.1 - Internal Organization (asset management and inventory)
A.8.1.1 - Asset Management (mobile device inventory and lifecycle)
A.12.2.1 - Change Management (patch deployment procedures)
A.12.6.1 - Management of Technical Vulnerabilities (vulnerability assessment and remediation)
🔵 SAMA CSF
ID.AM-2 - Asset Management (inventory of mobile devices)
PR.DS-6 - Data Protection (secure device configuration)
PR.PT-2 - Protection Processes (vulnerability management)
DE.CM-8 - Monitoring Activities (detection of exploitation attempts)
RS.MI-2 - Mitigation (incident containment for compromised devices)
🟡 ISO 27001:2022
A.5.1 - Management Direction (information security policy for mobile devices)
A.8.1 - Asset Management (inventory and classification of mobile assets)
A.12.2 - Change Management (controlled deployment of security patches)
A.12.6 - Management of Technical Vulnerabilities (vulnerability identification and remediation)
A.14.2 - System Development and Maintenance (secure coding practices in device drivers)
🟣 PCI DSS v4.0
Requirement 2.2 - Configuration Standards (secure device configuration)
Requirement 6.2 - Security Patches (timely application of vendor patches)
Requirement 11.2 - Vulnerability Scanning (identification of vulnerable devices)
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Samsung:Mobile Devices