📄 Description (English)
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
🤖 AI Executive Summary
CVE-2026-32190 is a use-after-free vulnerability in Microsoft Office with a CVSS score of 8.4 that enables local code execution by unauthorized attackers. This vulnerability poses significant risk to Saudi organizations relying on Microsoft Office for critical operations. Currently, no patch is available, requiring immediate implementation of compensating controls and monitoring strategies.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 24, 2026 12:54
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability directly impacts Saudi banking sector (SAMA-regulated institutions), government agencies (NCA oversight), healthcare organizations, and energy sector (ARAMCO and subsidiaries). The local code execution capability poses critical risk to workstations and servers across these sectors. Telecom operators (STC, Mobily, Zain) managing critical infrastructure are also at elevated risk. The absence of a patch creates extended exposure window for sophisticated threat actors targeting Saudi critical infrastructure.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Healthcare and Medical Services
Energy and Petroleum
Telecommunications
Education
Manufacturing
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
8.1
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Inventory all Microsoft Office installations across the organization, prioritizing critical systems and administrative workstations
2. Implement application whitelisting to restrict Office macro execution and suspicious processes
3. Disable Office macros by default using Group Policy (GPO) for Windows environments
4. Restrict local administrative privileges to minimize exploitation impact
5. Enable Windows Defender Application Guard for Office applications
COMPENSATING CONTROLS:
6. Implement behavioral monitoring for Office processes using EDR solutions
7. Deploy network segmentation to isolate critical systems from general user workstations
8. Enable Windows Event Logging for Office process creation and memory access patterns
9. Monitor for suspicious Office child processes (cmd.exe, powershell.exe, wscript.exe)
10. Implement DLP solutions to prevent data exfiltration via Office applications
DETECTION RULES:
11. Alert on Office processes spawning cmd.exe, powershell.exe, or rundll32.exe
12. Monitor for Office accessing unusual registry keys or system files
13. Track Office process memory allocation patterns and heap operations
14. Log all Office document opens from untrusted sources
15. Monitor for Office processes with abnormal network connections
PATCHING STRATEGY:
16. Subscribe to Microsoft Security Update Guide for patch availability
17. Establish expedited patching process once patch is released
18. Test patches in isolated environment before production deployment
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. حصر جميع تثبيتات Microsoft Office في المنظمة مع إعطاء الأولوية للأنظمة الحرجة ومحطات العمل الإدارية
2. تطبيق قائمة التطبيقات المسموحة لتقييد تنفيذ الماكروهات والعمليات المريبة
3. تعطيل ماكروهات Office افتراضياً باستخدام Group Policy
4. تقييد امتيازات المسؤول المحلي لتقليل تأثير الاستغلال
5. تفعيل Windows Defender Application Guard لتطبيقات Office
الضوابط البديلة:
6. تطبيق المراقبة السلوكية لعمليات Office باستخدام حلول EDR
7. نشر تقسيم الشبكة لعزل الأنظمة الحرجة عن محطات العمل العامة
8. تفعيل Windows Event Logging لعمليات Office وأنماط الوصول للذاكرة
9. مراقبة العمليات الفرعية المريبة لـ Office
10. تطبيق حلول DLP لمنع تسرب البيانات عبر تطبيقات Office
قواعد الكشف:
11. تنبيهات عند قيام Office بتشغيل cmd.exe أو powershell.exe
12. مراقبة وصول Office للمفاتيح غير المعتادة في السجل
13. تتبع أنماط تخصيص الذاكرة لعمليات Office
14. تسجيل جميع فتح مستندات Office من مصادر غير موثوقة
15. مراقبة اتصالات الشبكة غير الطبيعية لعمليات Office
استراتيجية التصحيح:
16. الاشتراك في Microsoft Security Update Guide
17. إنشاء عملية تصحيح معجلة عند توفر التصحيح
18. اختبار التصحيحات في بيئة معزولة قبل النشر
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information security policies and procedures
A.8.1.1 - User access management
A.12.2.1 - Change management procedures
A.12.6.1 - Management of technical vulnerabilities
🔵 SAMA CSF
ID.RA-1 - Asset management and vulnerability identification
PR.IP-12 - Software, firmware, and information integrity mechanisms
DE.CM-8 - Vulnerability scans are performed
🟡 ISO 27001:2022
A.12.6.1 - Management of technical vulnerabilities
A.14.2.1 - Secure development policy
A.12.2.1 - Change management
A.5.1.1 - Information security policies
🟣 PCI DSS v4.0.1
6.2 - Security patches must be installed within defined timeframe
11.2 - Vulnerability scanning and remediation
🔗 References & Sources 1