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Vulnerabilities

CVE-2026-33120

High
CWE-822 — Weakness Type
Published: Apr 14, 2026  ·  Modified: Apr 21, 2026  ·  Source: NVD
CVSS v3
8.8
🔗 NVD Official
📄 Description (English)

Untrusted pointer dereference in SQL Server allows an authorized attacker to execute code over a network.

🤖 AI Executive Summary

CVE-2026-33120 is a high-severity untrusted pointer dereference vulnerability in SQL Server (CVSS 8.8) that allows authorized attackers to execute arbitrary code remotely. While no public exploit is currently available and patches are not yet released, the vulnerability poses significant risk to organizations relying on SQL Server for critical data operations. Immediate mitigation through network segmentation and access controls is essential pending vendor remediation.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 23, 2026 03:10
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses critical risk to Saudi banking sector (SAMA-regulated institutions), government agencies (NCA oversight), healthcare providers (MOH systems), and energy sector (ARAMCO, SEC operations). SQL Server is widely deployed across Saudi enterprises for ERP, CRM, and financial systems. The requirement for authenticated access slightly reduces risk, but compromised credentials or insider threats remain significant concerns. Telecom operators (STC, Mobily) and financial services firms are particularly vulnerable due to heavy SQL Server reliance for customer data and transaction processing.
🏢 Affected Saudi Sectors
Banking and Financial Services Government and Public Administration Healthcare Energy and Utilities Telecommunications Retail and E-commerce Manufacturing Insurance
⚖️ Saudi Risk Score (AI)
7.8
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Inventory all SQL Server instances across the organization and document access controls
2. Restrict SQL Server network access to authorized users only via firewall rules and VPN requirements
3. Enforce strong authentication (MFA) for all SQL Server administrative and application accounts
4. Disable unnecessary SQL Server features and services to reduce attack surface
5. Monitor SQL Server error logs and security event logs for suspicious pointer dereference errors

COMPENSATING CONTROLS:
6. Implement database activity monitoring (DAM) solutions to detect unauthorized code execution attempts
7. Apply principle of least privilege - limit database user permissions to minimum required
8. Isolate SQL Server instances on separate network segments with strict ingress/egress filtering
9. Conduct regular access reviews and revoke unnecessary database permissions
10. Enable SQL Server audit logging for all connection attempts and code execution events

DETECTION:
11. Monitor for error code patterns related to pointer dereference in SQL Server logs
12. Alert on unusual stored procedure creation or modification events
13. Track failed authentication attempts and privilege escalation attempts
14. Watch for network connections from unexpected sources to SQL Server ports (1433, 1434)

PATCHING READINESS:
15. Subscribe to Microsoft security advisories and prepare patch deployment procedures
16. Test patches in non-production environments before enterprise rollout
17. Maintain current SQL Server versions and cumulative updates
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. حصر جميع نسخ SQL Server في المنظمة وتوثيق عناصر التحكم في الوصول
2. تقييد وصول الشبكة إلى SQL Server للمستخدمين المصرحين فقط عبر قواعد جدار الحماية ومتطلبات VPN
3. فرض المصادقة القوية (MFA) لجميع حسابات SQL Server الإدارية والتطبيقية
4. تعطيل ميزات وخدمات SQL Server غير الضرورية لتقليل سطح الهجوم
5. مراقبة سجلات أخطاء SQL Server وسجلات أحداث الأمان للأخطاء المريبة

الضوابط البديلة:
6. تطبيق حلول مراقبة نشاط قاعدة البيانات (DAM) للكشف عن محاولات تنفيذ أكواد غير مصرح بها
7. تطبيق مبدأ الحد الأدنى من الامتيازات - تحديد أذونات مستخدم قاعدة البيانات
8. عزل نسخ SQL Server على أجزاء شبكة منفصلة مع تصفية صارمة
9. إجراء مراجعات وصول منتظمة وإلغاء الأذونات غير الضرورية
10. تفعيل تسجيل تدقيق SQL Server لجميع محاولات الاتصال وأحداث تنفيذ الأكواد

الكشف:
11. مراقبة أنماط رموز الأخطاء المتعلقة بإلغاء المؤشرات في سجلات SQL Server
12. تنبيهات عند إنشاء أو تعديل إجراءات مخزنة غير عادية
13. تتبع محاولات المصادقة الفاشلة ومحاولات تصعيد الامتيازات
14. مراقبة الاتصالات من مصادر غير متوقعة إلى منافذ SQL Server

الاستعداد للتصحيحات:
15. الاشتراك في استشارات أمان Microsoft والاستعداد لإجراءات نشر التصحيحات
16. اختبار التصحيحات في بيئات غير الإنتاج قبل النشر على مستوى المؤسسة
17. الحفاظ على إصدارات SQL Server الحالية والتحديثات التراكمية
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Access Control Policies ECC 2024 A.5.2.1 - User Registration and De-registration ECC 2024 A.5.3.1 - Access Rights Review ECC 2024 A.8.2.1 - Classification of Information ECC 2024 A.8.2.3 - Handling of Assets ECC 2024 A.12.4.1 - Event Logging ECC 2024 A.12.4.3 - Administrator and Operator Logs
🔵 SAMA CSF
SAMA CSF ID.AM-2 - Software Inventory SAMA CSF PR.AC-1 - Access Control Policy SAMA CSF PR.AC-4 - Access Rights Management SAMA CSF DE.CM-1 - Network Monitoring SAMA CSF DE.CM-3 - Activity Monitoring SAMA CSF RS.MI-2 - Incident Response Procedures
🟡 ISO 27001:2022
ISO 27001:2022 A.5.3 - Segregation of Duties ISO 27001:2022 A.8.1 - User Endpoint Devices ISO 27001:2022 A.8.2 - Privileged Access Rights ISO 27001:2022 A.8.3 - Information Access Restriction ISO 27001:2022 A.8.4 - Access to Cryptographic Keys ISO 27001:2022 A.12.4 - Logging ISO 27001:2022 A.12.6 - Management of Technical Vulnerabilities
🟣 PCI DSS v4.0.1
PCI DSS 3.2.1 - Strong Cryptography for Authentication PCI DSS 7.1 - Limit Access to System Components PCI DSS 8.1 - Assign Unique ID to Each User PCI DSS 10.2 - Implement Automated Audit Trails PCI DSS 10.3 - Protect Audit Trail History
📊 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-822
EPSS0.07%
Exploit No
Patch ✗ No
Published 2026-04-14
Source Feed nvd
Views 4
🇸🇦 Saudi Risk Score
7.8
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-822
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