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Vulnerabilities

CVE-2025-47404

Medium
CWE-120 — Weakness Type
Published: May 4, 2026  ·  Modified: May 6, 2026  ·  Source: NVD
CVSS v3
6.5
🔗 NVD Official
📄 Description (English)

Memory corruption when dynamically changing the size of a previously allocated buffer while its contents are being modified.

🤖 AI Executive Summary

CVE-2025-47404 is a medium-severity memory corruption vulnerability (CVSS 6.5) affecting buffer size management during concurrent modification operations. The vulnerability occurs when a previously allocated buffer's size is dynamically changed while its contents are being actively modified, potentially leading to out-of-bounds access, data corruption, or denial of service. Without available patches, organizations must implement immediate compensating controls and monitoring strategies.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 11, 2026 07:36
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi financial institutions (SAMA-regulated banks), government agencies (NCA oversight), and critical infrastructure operators. Banking systems processing high-volume transactions are particularly vulnerable due to concurrent buffer operations in payment processing systems. Telecommunications providers (STC, Mobily) and energy sector operators (ARAMCO, SEC) managing real-time data streams face potential service disruption. Healthcare systems (MOH) handling patient data could experience data integrity issues. The lack of available patches elevates risk across all sectors relying on affected software components.
🏢 Affected Saudi Sectors
Banking and Financial Services Government and Public Administration Telecommunications Energy and Utilities Healthcare Critical Infrastructure
⚖️ Saudi Risk Score (AI)
7.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all systems and applications using affected software components through comprehensive asset inventory
2. Implement input validation and bounds checking at application layer to prevent buffer overflow conditions
3. Enable Address Space Layout Randomization (ASLR) and Data Execution Prevention (DEP) on all affected systems
4. Deploy memory protection mechanisms (stack canaries, heap guards) where available

COMPENSATING CONTROLS:
5. Implement strict access controls limiting concurrent operations on shared buffers
6. Deploy application-level synchronization mechanisms (mutexes, semaphores) to prevent simultaneous buffer modifications
7. Establish rate limiting on buffer allocation/deallocation operations
8. Monitor memory allocation patterns for anomalies

DETECTION & MONITORING:
9. Deploy EDR/XDR solutions to detect memory corruption exploitation attempts
10. Monitor system logs for segmentation faults, access violations, and unexpected process terminations
11. Implement SIEM rules detecting rapid buffer size changes followed by write operations
12. Establish baseline memory usage patterns and alert on deviations

PATCHING STRATEGY:
13. Contact vendor for patch timeline and interim security updates
14. Prepare patch testing environment immediately upon vendor release
15. Prioritize patching for internet-facing and critical infrastructure systems
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع الأنظمة والتطبيقات التي تستخدم مكونات البرامج المتأثرة من خلال جرد شامل للأصول
2. تنفيذ التحقق من صحة المدخلات والتحقق من الحدود على مستوى التطبيق لمنع ظروف تجاوز المخزن المؤقت
3. تفعيل عشوائية تخطيط مساحة العنوان (ASLR) ومنع تنفيذ البيانات (DEP) على جميع الأنظمة المتأثرة
4. نشر آليات حماية الذاكرة (مؤشرات المكدس، حراس الكومة) حيث تكون متاحة

الضوابط التعويضية:
5. تنفيذ ضوابط وصول صارمة تحد من العمليات المتزامنة على المخازن المؤقتة المشتركة
6. نشر آليات المزامنة على مستوى التطبيق (الأقفال، السيمافورات) لمنع التعديلات المتزامنة للمخزن المؤقت
7. إنشاء تحديد معدل لعمليات تخصيص/إلغاء تخصيص المخزن المؤقت
8. مراقبة أنماط تخصيص الذاكرة للكشف عن الشذوذ

الكشف والمراقبة:
9. نشر حلول EDR/XDR للكشف عن محاولات استغلال تلف الذاكرة
10. مراقبة سجلات النظام للكشف عن أخطاء التقسيم وانتهاكات الوصول وإنهاء العمليات غير المتوقعة
11. تنفيذ قواعد SIEM للكشف عن تغييرات حجم المخزن المؤقت السريعة متبوعة بعمليات الكتابة
12. إنشاء أنماط استخدام الذاكرة الأساسية والتنبيه عند الانحرافات

استراتيجية التصحيح:
13. الاتصال بالمورد للحصول على جدول زمني للتصحيح والتحديثات الأمنية المؤقتة
14. تحضير بيئة اختبار التصحيح فوراً عند إصدار المورد
15. إعطاء الأولوية لتصحيح الأنظمة المواجهة للإنترنت والبنية التحتية الحرجة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.1.1 - Information Security Policies and Procedures 5.2.1 - Access Control Implementation 5.3.1 - Cryptography and Data Protection 5.4.1 - System and Communications Protection 5.5.1 - Incident Management
🔵 SAMA CSF
Governance - Risk Management Framework Protective - System Hardening and Patch Management Protective - Access Control and Authentication Detective - Monitoring and Logging Responsive - Incident Response Procedures
🟡 ISO 27001:2022
A.5.1 - Policies for Information Security A.8.1 - User Endpoint Devices A.8.2 - Privileged Access Rights A.8.3 - Information Access Restriction A.12.2 - Change Management A.12.6 - Management of Technical Vulnerabilities
🟣 PCI DSS v4.0.1
Requirement 2.2 - Configuration Standards Requirement 6.2 - Security Patches Requirement 11.2 - Vulnerability Scanning Requirement 12.2 - Configuration Management
📊 CVSS Score
6.5
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
Attack VectorL — Low / Local
Attack ComplexityH — High
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityH — High
IntegrityH — High
AvailabilityL — Low / Local
📋 Quick Facts
Severity Medium
CVSS Score6.5
CWECWE-120
EPSS0.02%
Exploit No
Patch ✗ No
Published 2026-05-04
Source Feed nvd
🇸🇦 Saudi Risk Score
7.2
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-120
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