📄 Description (English)
A buffer overflow vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes.
We have already fixed the vulnerability in the following version:
Qsync Central 5.0.0.4 ( 2026/01/20 ) and later
🤖 AI Executive Summary
CVE-2025-52868 is a buffer overflow vulnerability in QNAP Qsync Central that allows authenticated remote attackers to modify memory or crash processes. With a CVSS score of 8.1, this poses a significant risk to organizations using Qsync Central for file synchronization and collaboration. The vulnerability requires valid user credentials but can lead to denial of service or potential code execution. Immediate patching to version 5.0.0.4 or later is strongly recommended.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 26, 2026 02:20
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi organizations in the following sectors: (1) Government agencies and ministries using Qsync Central for document management and inter-departmental collaboration; (2) Banking and financial institutions leveraging Qsync for secure file sharing and compliance documentation; (3) Healthcare organizations (MOH, private hospitals) using the platform for patient records and administrative files; (4) Energy sector (ARAMCO, SABIC) for operational data synchronization; (5) Telecommunications companies (STC, Mobily) for internal collaboration. The authenticated nature of the attack reduces immediate risk but poses significant threat if user accounts are compromised through phishing or credential theft—common attack vectors in the region.
🏢 Affected Saudi Sectors
Government and Public Administration
Banking and Financial Services
Healthcare
Energy and Utilities
Telecommunications
Education
Manufacturing
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
7.8
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all instances of Qsync Central in your environment and document current versions
2. Prioritize systems running versions prior to 5.0.0.4
3. Review access logs for suspicious authentication attempts or unusual file modifications
4. Audit user account permissions and disable unnecessary accounts
PATCHING GUIDANCE:
1. Upgrade all Qsync Central installations to version 5.0.0.4 (released 2026/01/20) or later
2. Test patches in a non-production environment first
3. Schedule maintenance windows to minimize business disruption
4. Verify successful patch deployment by checking version numbers post-upgrade
COMPENSATING CONTROLS (if immediate patching not possible):
1. Implement network segmentation to restrict access to Qsync Central to authorized users only
2. Enable multi-factor authentication (MFA) for all Qsync Central user accounts
3. Monitor for suspicious process crashes or memory access patterns
4. Implement strict firewall rules limiting remote access to Qsync Central services
5. Disable remote access if not operationally required
DETECTION RULES:
1. Monitor for unexpected process terminations of Qsync Central services
2. Alert on multiple failed authentication attempts followed by successful login
3. Track unusual memory access patterns or buffer-related system errors
4. Log and alert on any modifications to Qsync Central configuration files
5. Monitor for abnormal network traffic from Qsync Central processes
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. حدد جميع حالات Qsync Central في بيئتك وقثق الإصدارات الحالية
2. أعط الأولوية للأنظمة التي تعمل بإصدارات سابقة للإصدار 5.0.0.4
3. راجع سجلات الوصول للمحاولات المريبة للمصادقة أو التعديلات غير العادية للملفات
4. قيّم أذونات حسابات المستخدمين وعطّل الحسابات غير الضرورية
إرشادات التصحيح:
1. ترقية جميع تثبيتات Qsync Central إلى الإصدار 5.0.0.4 (صدر في 2026/01/20) أو أحدث
2. اختبر التصحيحات في بيئة غير إنتاجية أولاً
3. جدول نوافذ الصيانة لتقليل انقطاع الأعمال
4. تحقق من نجاح نشر التصحيح بفحص أرقام الإصدارات بعد الترقية
الضوابط البديلة (إذا لم يكن التصحيح الفوري ممكناً):
1. تطبيق تقسيم الشبكة لتقييد الوصول إلى Qsync Central للمستخدمين المصرح لهم فقط
2. تفعيل المصادقة متعددة العوامل (MFA) لجميع حسابات مستخدمي Qsync Central
3. مراقبة توقف العمليات المريبة أو أنماط الوصول إلى الذاكرة
4. تطبيق قواعد جدار الحماية الصارمة لتقييد الوصول البعيد إلى خدمات Qsync Central
5. تعطيل الوصول البعيد إذا لم يكن مطلوباً تشغيلياً
قواعد الكشف:
1. مراقبة إنهاء العمليات غير المتوقعة لخدمات Qsync Central
2. تنبيهات على محاولات مصادقة فاشلة متعددة متبوعة بتسجيل دخول ناجح
3. تتبع أنماط الوصول إلى الذاكرة غير العادية أو أخطاء النظام المتعلقة بالمخزن المؤقت
4. تسجيل والتنبيه على أي تعديلات على ملفات تكوين Qsync Central
5. مراقبة حركة المرور على الشبكة غير الطبيعية من عمليات Qsync Central
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.1 - Access Control and Authentication
5.2 - User Access Management
6.1 - Cryptography and Data Protection
7.1 - System and Communications Protection
8.1 - Incident Detection and Response
🔵 SAMA CSF
ID.AM-2: Software and hardware inventory
PR.AC-1: Access control policy and procedures
PR.PT-1: Security awareness and training
DE.CM-1: The network is monitored to detect potential cybersecurity events
RS.RP-1: Response plan is executed during or after an incident
🟡 ISO 27001:2022
A.5.15 - Access control
A.6.2 - Internal organization
A.8.1 - User endpoint devices
A.8.2 - User access management
A.12.6 - Change management
A.14.2 - Software development and change management
🟣 PCI DSS v4.0.1
Requirement 1 - Install and maintain a firewall configuration
Requirement 2 - Do not use vendor-supplied defaults
Requirement 6 - Develop and maintain secure systems and applications
Requirement 8 - Identify and authenticate access to system components
🔗 References & Sources 1
📦 Affected Products / CPE 1 entries
qnap:qsync_central