📄 Description (English)
Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
🤖 AI Executive Summary
CVE-2026-34344 is a type confusion vulnerability in Windows Ancillary Function Driver for WinSock affecting multiple Windows 10 versions, allowing authorized local attackers to escalate privileges. With a CVSS score of 7.8 and no patch currently available, this poses a significant risk to Saudi organizations relying on Windows infrastructure. The vulnerability requires local access but enables full system compromise once exploited.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: May 17, 2026 10:00
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi banking sector (SAMA-regulated institutions), government agencies (NCA oversight), healthcare facilities, and energy sector organizations (ARAMCO, downstream operators) that rely on Windows 10 infrastructure. The privilege escalation capability could enable lateral movement within critical systems, particularly affecting administrative workstations, domain controllers, and operational technology networks. Telecom operators (STC, Mobily, Zain) managing network infrastructure are also at risk. The requirement for local/authorized access suggests insider threat potential and compromised endpoint scenarios.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Healthcare and Medical Facilities
Energy and Utilities
Telecommunications
Critical Infrastructure
Defense and Security
🎯 MITRE ATT&CK Techniques
T1548 - Abuse Elevation Control Mechanism
T1548.004 - Abuse Elevation Control Mechanism: Elevated Execution with Prompt
T1134 - Access Token Manipulation
T1547 - Boot or Logon Autostart Execution
T1547.001 - Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder
T1543 - Create or Modify System Process
T1112 - Modify Registry
T1574 - Hijack Execution Flow
⚖️ Saudi Risk Score (AI)
7.8
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Inventory all Windows 10 systems (versions 1607, 1809, 21H2, 22H2) across your organization
2. Restrict local administrative access and enforce principle of least privilege
3. Implement application whitelisting to prevent unauthorized driver loading
4. Monitor for suspicious WinSock driver activity and privilege escalation attempts
Compensating Controls (until patch available):
5. Disable unnecessary network services and WinSock auxiliary functions where not required
6. Implement Device Guard/Hypervisor Code Integrity (HVCI) to prevent unsigned driver execution
7. Enable Windows Defender Exploit Guard with Attack Surface Reduction rules
8. Enforce Code Integrity policies to restrict driver loading
Detection Rules:
9. Monitor Event ID 4688 for suspicious process creation with elevated privileges
10. Alert on unsigned driver loading attempts (Event ID 6)
11. Track WinSock API calls and type confusion patterns in kernel memory
12. Monitor for anomalous network driver behavior and memory access violations
Patching Strategy:
13. Subscribe to Microsoft Security Updates and apply immediately upon patch release
14. Prioritize patching for systems with high-risk profiles (domain controllers, administrative workstations)
15. Test patches in isolated environment before enterprise deployment
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. قم بحصر جميع أنظمة Windows 10 (الإصدارات 1607 و 1809 و 21H2 و 22H2) عبر مؤسستك
2. قيد الوصول الإداري المحلي وفرض مبدأ أقل امتياز
3. طبق القائمة البيضاء للتطبيقات لمنع تحميل برامج التشغيل غير المصرح بها
4. راقب نشاط برنامج تشغيل WinSock المريب ومحاولات تصعيد الامتيازات
الضوابط التعويضية (حتى توفر التصحيح):
5. عطل الخدمات الشبكية غير الضرورية ووظائف WinSock الإضافية حيث لا تكون مطلوبة
6. طبق Device Guard/Hypervisor Code Integrity (HVCI) لمنع تنفيذ برامج التشغيل غير الموقعة
7. فعّل Windows Defender Exploit Guard مع قواعد تقليل سطح الهجوم
8. فرض سياسات سلامة الكود لتقييد تحميل برامج التشغيل
قواعد الكشف:
9. راقب معرف الحدث 4688 لإنشاء عملية مريبة بامتيازات مرتفعة
10. أصدر تنبيهات عند محاولات تحميل برامج تشغيل غير موقعة (معرف الحدث 6)
11. تتبع استدعاءات WinSock API وأنماط التباس النوع في ذاكرة النواة
12. راقب السلوك الشاذ لبرنامج تشغيل الشبكة وانتهاكات الوصول إلى الذاكرة
استراتيجية التصحيح:
13. اشترك في تحديثات أمان Microsoft وطبقها فورًا عند إصدار التصحيح
14. أعط الأولوية لتصحيح الأنظمة ذات الملفات الشخصية عالية المخاطر (متحكمات المجال، محطات العمل الإدارية)
15. اختبر التصحيحات في بيئة معزولة قبل نشرها على مستوى المؤسسة
📋 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 - Privilege Management
ECC 2024 A.8.2.1 - System Hardening
ECC 2024 A.8.2.3 - Segregation of Networks
🔵 SAMA CSF
SAMA CSF ID.AM-2 - Hardware and Software Inventory
SAMA CSF PR.AC-1 - Access Control Policy
SAMA CSF PR.AC-4 - Access Rights Management
SAMA CSF PR.DS-5 - Protective Technology
SAMA CSF DE.CM-1 - Network Monitoring
🟡 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.14.2 - System hardening
🟣 PCI DSS v4.0.1
PCI DSS 2.2.4 - Configure system security parameters
PCI DSS 6.2 - Ensure security patches installed
PCI DSS 7.1 - Limit access to system components
PCI DSS 8.2 - Assign unique ID to each person
📦 Affected Products / CPE 25 entries
microsoft:windows_10_1607
microsoft:windows_10_1607
microsoft:windows_10_1809
microsoft:windows_10_1809
microsoft:windows_10_21h2
microsoft:windows_10_21h2
microsoft:windows_10_21h2
microsoft:windows_10_22h2
microsoft:windows_10_22h2
microsoft:windows_10_22h2
microsoft:windows_11_23h2
microsoft:windows_11_23h2
microsoft:windows_11_24h2
microsoft:windows_11_24h2
microsoft:windows_11_25h2
microsoft:windows_11_25h2
microsoft:windows_11_26h1
microsoft:windows_11_26h1
microsoft:windows_server_2012:-
microsoft:windows_server_2012:r2
microsoft:windows_server_2016
microsoft:windows_server_2019
microsoft:windows_server_2022
microsoft:windows_server_2022_23h2
microsoft:windows_server_2025