📄 Description (English)
Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
🤖 AI Executive Summary
CVE-2026-24285 is a use-after-free vulnerability in Windows Win32K kernel component affecting multiple Windows 10 versions and Microsoft Office on Android. An authorized local attacker can exploit this flaw to elevate privileges to SYSTEM level. With a CVSS score of 7.0 and no public exploit currently available, this represents a significant but manageable risk requiring prompt patching across enterprise environments.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: May 10, 2026 11:19
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi banking sector (SAMA-regulated institutions), government agencies under NCA oversight, and critical infrastructure operators. The privilege escalation capability threatens Windows 10 endpoints widely deployed in Saudi organizations. Banking systems, government administrative networks, and healthcare facilities using affected Windows versions face elevated risk of lateral movement and data exfiltration. Telecom operators (STC, Mobily) and energy sector organizations (ARAMCO, SEC) with Windows-based operational technology systems require immediate assessment. The Android Office variant affects mobile workforce security in these sectors.
🏢 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
⚖️ Saudi Risk Score (AI)
7.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Inventory all Windows 10 systems running versions 1607, 1809, 21H2, and 22H2 across your organization
2. Prioritize patching for systems with local user access and elevated privilege requirements
3. Restrict local administrative access and enforce principle of least privilege
4. Monitor for suspicious privilege escalation attempts in Windows Event Logs (Event ID 4688, 4689)
PATCHING GUIDANCE:
1. Apply Microsoft security updates immediately upon release through WSUS or Windows Update
2. Test patches in non-production environments first, particularly for critical systems
3. Prioritize patching for: banking systems, government networks, healthcare facilities, and industrial control systems
4. For Android Office users, update to latest version through Google Play Store
COMPENSATING CONTROLS (if immediate patching delayed):
1. Disable unnecessary local user accounts and service accounts
2. Implement application whitelisting to prevent unauthorized privilege escalation tools
3. Enable Windows Defender Exploit Guard and Attack Surface Reduction rules
4. Deploy endpoint detection and response (EDR) solutions for behavioral monitoring
5. Enforce multi-factor authentication for administrative access
DETECTION RULES:
1. Monitor Windows Event Log for Win32K API calls with suspicious memory operations
2. Alert on processes attempting to access kernel memory or execute code in kernel space
3. Track creation of suspicious child processes from system services
4. Monitor for abnormal handle operations in Win32K subsystem
5. Implement YARA rules targeting use-after-free exploitation patterns in memory dumps
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. قم بحصر جميع أنظمة Windows 10 التي تعمل بالإصدارات 1607 و1809 و21H2 و22H2 عبر مؤسستك
2. أولويات التصحيح للأنظمة ذات الوصول المحلي ومتطلبات الامتيازات المرتفعة
3. تقييد الوصول الإداري المحلي وفرض مبدأ أقل امتياز
4. مراقبة محاولات الارتقاء بالامتيازات المريبة في سجلات Windows
إرشادات التصحيح:
1. تطبيق تحديثات أمان Microsoft فوراً عند الإصدار عبر WSUS أو Windows Update
2. اختبار التصحيحات في بيئات غير الإنتاج أولاً، خاصة للأنظمة الحرجة
3. أولويات التصحيح: أنظمة البنوك والشبكات الحكومية والمرافق الصحية والأنظمة الصناعية
4. لمستخدمي Office على Android، قم بالتحديث إلى أحدث إصدار عبر Google Play Store
الضوابط البديلة (إذا تأخر التصحيح الفوري):
1. تعطيل حسابات المستخدمين المحليين غير الضرورية وحسابات الخدمات
2. تطبيق قائمة بيضاء للتطبيقات لمنع أدوات الارتقاء بالامتيازات غير المصرح بها
3. تفعيل Windows Defender Exploit Guard وقواعد تقليل سطح الهجوم
4. نشر حلول الكشف والاستجابة على نقاط النهاية (EDR) للمراقبة السلوكية
5. فرض المصادقة متعددة العوامل للوصول الإداري
قواعد الكشف:
1. مراقبة سجل Windows للعمليات المريبة في Win32K
2. تنبيهات محاولات الوصول إلى ذاكرة النواة
3. تتبع إنشاء عمليات فرعية غير عادية من خدمات النظام
4. مراقبة عمليات المقابض غير الطبيعية في نظام Win32K
5. تطبيق قواعد YARA لأنماط استغلال use-after-free
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information security policies and procedures
A.6.1.1 - Access control policy
A.6.2.1 - User registration and de-registration
A.12.2.1 - Controls against malware
A.12.6.1 - Management of technical vulnerabilities
🔵 SAMA CSF
ID.AM-2 - Software inventory
PR.AC-1 - Access control policy
PR.PT-2 - Protective technology deployment
DE.CM-8 - Vulnerability scans
RS.MI-2 - Incident response procedures
🟡 ISO 27001:2022
A.5.1 - Management direction for information security
A.6.1 - Internal organization
A.6.2 - Mobile device and teleworking
A.12.6 - Management of technical vulnerabilities
A.14.2 - Development and change management
🟣 PCI DSS v4.0.1
Requirement 2.2 - Configuration standards
Requirement 6.2 - Security patches
Requirement 11.2 - Vulnerability scanning
📦 Affected Products / CPE 24 entries
microsoft:office
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_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