📄 Description (English)
Improper resolution of path equivalence in Windows MapUrlToZone allows an unauthorized attacker to bypass a security feature over a network.
🤖 AI Executive Summary
CVE-2026-23674 is a high-severity vulnerability in Windows MapUrlToZone that allows attackers to bypass security zone restrictions through improper path equivalence resolution. This affects multiple Windows 10 versions and could enable unauthorized access to restricted resources over a network. Immediate patching is critical for organizations relying on Windows security zones for access control.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: May 4, 2026 11:50
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi government agencies (NCA, NCSC), banking sector (SAMA-regulated institutions, major banks), and critical infrastructure operators. Organizations using Windows 10 endpoints for accessing restricted internal resources or relying on Internet Explorer/Edge security zones for access control are particularly vulnerable. Telecom operators (STC, Mobily) and energy sector entities managing SCADA systems on Windows platforms face elevated risk. The vulnerability could enable lateral movement and unauthorized access to sensitive government and financial systems.
🏢 Affected Saudi Sectors
Government (NCA, NCSC, Ministry of Interior)
Banking and Financial Services (SAMA-regulated banks)
Healthcare (MOH, private hospitals)
Energy and Utilities (ARAMCO, power generation)
Telecommunications (STC, Mobily, Zain)
Critical Infrastructure
Defense and Security
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
7.8
/ 10.0
🔧 Remediation Steps (English)
1. IMMEDIATE ACTIONS:
- Inventory all Windows 10 systems (versions 1607, 1809, 21H2, 22H2) across your organization
- Prioritize patching for systems handling sensitive data or critical functions
- Disable or restrict access to MapUrlToZone functionality if possible
2. PATCHING GUIDANCE:
- Apply Microsoft security updates immediately upon availability
- Test patches in non-production environments first
- Implement phased rollout starting with critical systems
- Verify patch installation using Windows Update verification tools
3. COMPENSATING CONTROLS:
- Implement network segmentation to restrict lateral movement
- Deploy application whitelisting to prevent exploitation vectors
- Enable Enhanced Protected Mode in Internet Explorer/Edge
- Restrict URL zone assignments through Group Policy (gpedit.msc)
- Monitor and log all URL zone resolution activities
4. DETECTION RULES:
- Monitor for abnormal MapUrlToZone API calls via Windows Event Viewer (Event ID 4688)
- Alert on attempts to access restricted zones from unexpected sources
- Track modifications to Internet Explorer/Edge security zone settings
- Monitor for suspicious path traversal patterns in URL handling
🔧 خطوات المعالجة (العربية)
1. الإجراءات الفورية:
- قم بحصر جميع أنظمة Windows 10 (الإصدارات 1607، 1809، 21H2، 22H2) في مؤسستك
- أولويات التصحيح للأنظمة التي تتعامل مع البيانات الحساسة أو الوظائف الحرجة
- تعطيل أو تقييد الوصول إلى وظيفة MapUrlToZone إن أمكن
2. إرشادات التصحيح:
- تطبيق تحديثات أمان Microsoft فوراً عند توفرها
- اختبار التصحيحات في بيئات غير الإنتاج أولاً
- تنفيذ طرح متدرج بدءاً من الأنظمة الحرجة
- التحقق من تثبيت التصحيح باستخدام أدوات التحقق من Windows Update
3. الضوابط البديلة:
- تنفيذ تقسيم الشبكة لتقييد الحركة الجانبية
- نشر قائمة بيضاء للتطبيقات لمنع متجهات الاستغلال
- تفعيل الوضع المحمي المحسّن في Internet Explorer/Edge
- تقييد تعيينات منطقة URL من خلال Group Policy
- مراقبة وتسجيل جميع أنشطة حل منطقة URL
4. قواعد الكشف:
- مراقبة استدعاءات MapUrlToZone API غير الطبيعية عبر Windows Event Viewer
- تنبيهات محاولات الوصول إلى المناطق المقيدة من مصادر غير متوقعة
- تتبع التعديلات على إعدادات منطقة أمان Internet Explorer/Edge
- مراقبة أنماط traversal المريبة في معالجة URL
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.14.2.1 - Information security requirements for system development and maintenance
ECC 2024 A.12.6.1 - Management of technical vulnerabilities
ECC 2024 A.12.2.1 - Restrictions on access to information and application system functions
🔵 SAMA CSF
SAMA CSF ID.BE-3.1 - Organizational resilience objectives
SAMA CSF PR.AC-1.1 - Access control policy and procedures
SAMA CSF DE.CM-1 - Detection processes and tools
🟡 ISO 27001:2022
ISO 27001:2022 A.5.15 - Access control
ISO 27001:2022 A.8.1 - User endpoint devices
ISO 27001:2022 A.12.6.1 - Management of technical vulnerabilities
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Security patches and updates
PCI DSS 11.2 - Vulnerability scanning
📦 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