📄 Description (English)
Microsoft Internet Explorer Type Confusion Vulnerability — A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer
🤖 AI Executive Summary
CVE-2019-0752 is a critical remote code execution vulnerability in Microsoft Internet Explorer's scripting engine, caused by a type confusion flaw in how objects are handled in memory. An attacker can exploit this vulnerability by convincing a user to visit a malicious webpage, potentially gaining full control of the affected system with the same privileges as the logged-in user. With a CVSS score of 9.0 and a confirmed public exploit available, this vulnerability poses an immediate and severe threat to any organization still relying on Internet Explorer. Immediate patching and mitigation are strongly recommended.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 12, 2026 11:36
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations across all sectors remain at significant risk, particularly those still operating legacy systems with Internet Explorer as a default or required browser. Government entities under NCA oversight and SAMA-regulated financial institutions that rely on legacy web-based internal portals or banking applications built for IE are especially vulnerable. Healthcare organizations using older clinical systems, energy sector companies like Saudi Aramco with operational technology environments tied to IE-dependent SCADA dashboards, and telecom providers such as STC with legacy customer portals face elevated exposure. The availability of a public exploit dramatically increases the likelihood of targeted attacks against Saudi critical infrastructure and government networks.
🏢 Affected Saudi Sectors
Government
Banking
Healthcare
Energy
Telecom
Education
Retail
Transportation
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Apply Microsoft's April 2019 security patch (KB4493472 or relevant cumulative update for your OS version) immediately across all affected systems.
2. Identify all systems still using Internet Explorer via asset inventory and prioritize patching based on internet-facing exposure.
3. Restrict or disable Internet Explorer where not operationally required using Group Policy.
Patching Guidance:
4. Deploy the patch via WSUS, SCCM, or Microsoft Update Catalog for all supported Windows versions.
5. Prioritize internet-facing systems, kiosks, and shared workstations.
Compensating Controls (if patching is delayed):
6. Enable Enhanced Protected Mode in Internet Explorer to limit exploit impact.
7. Set Internet Zone security to 'High' in IE settings to disable scripting.
8. Deploy Microsoft EMET or Windows Defender Exploit Guard to mitigate memory exploitation.
9. Block known malicious URLs and enforce web proxy filtering.
10. Restrict user privileges to prevent privilege escalation post-exploitation.
Detection Rules:
11. Monitor for iexplore.exe spawning unexpected child processes (e.g., cmd.exe, powershell.exe).
12. Enable Windows Event ID 4688 process creation logging and alert on anomalous IE child processes.
13. Deploy YARA/Snort rules targeting CVE-2019-0752 exploit patterns in network traffic.
14. Monitor for unusual memory allocation patterns in IE processes via EDR solutions.
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تطبيق تصحيح أمان Microsoft لشهر أبريل 2019 (KB4493472 أو التحديث التراكمي المناسب لإصدار نظام التشغيل) فوراً على جميع الأنظمة المتأثرة.
2. تحديد جميع الأنظمة التي لا تزال تستخدم Internet Explorer عبر جرد الأصول وتحديد أولويات التصحيح بناءً على مستوى التعرض للإنترنت.
3. تقييد أو تعطيل Internet Explorer حيث لا يكون مطلوباً تشغيلياً باستخدام Group Policy.
إرشادات التصحيح:
4. نشر التصحيح عبر WSUS أو SCCM أو Microsoft Update Catalog لجميع إصدارات Windows المدعومة.
5. إعطاء الأولوية للأنظمة المواجهة للإنترنت وأجهزة الكشك ومحطات العمل المشتركة.
ضوابط التعويض (إذا تأخر التصحيح):
6. تفعيل وضع الحماية المحسّنة في Internet Explorer للحد من تأثير الاستغلال.
7. ضبط أمان منطقة الإنترنت على 'عالٍ' في إعدادات IE لتعطيل البرمجة النصية.
8. نشر Microsoft EMET أو Windows Defender Exploit Guard للتخفيف من استغلال الذاكرة.
9. حظر عناوين URL الخبيثة المعروفة وتطبيق تصفية وكيل الويب.
10. تقييد صلاحيات المستخدم لمنع تصعيد الامتيازات بعد الاستغلال.
قواعد الكشف:
11. مراقبة عملية iexplore.exe لاكتشاف أي عمليات فرعية غير متوقعة (مثل cmd.exe أو powershell.exe).
12. تفعيل تسجيل إنشاء العمليات عبر Windows Event ID 4688 والتنبيه على العمليات الفرعية الشاذة لـ IE.
13. نشر قواعد YARA/Snort التي تستهدف أنماط استغلال CVE-2019-0752 في حركة الشبكة.
14. مراقبة أنماط تخصيص الذاكرة غير المعتادة في عمليات IE عبر حلول EDR.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC-1-4-2: Patch and vulnerability management
ECC-2-3-1: Secure configuration management
ECC-2-5-1: Protection against malicious code
ECC-2-6-1: Network security controls
ECC-3-3-3: Endpoint protection
🔵 SAMA CSF
Cybersecurity Risk Management — Vulnerability Management
Cybersecurity Operations — Threat and Vulnerability Management
Cybersecurity Operations — Incident Management
Asset Management — Software Asset Inventory
Endpoint Security — Browser and Application Hardening
🟡 ISO 27001:2022
A.8.8 — Management of technical vulnerabilities
A.8.7 — Protection against malware
A.8.9 — Configuration management
A.8.19 — Installation of software on operational systems
A.5.30 — ICT readiness for business continuity
🟣 PCI DSS v4.0
Requirement 6.3.3 — All system components are protected from known vulnerabilities by installing applicable security patches
Requirement 6.2.4 — Software engineering techniques to prevent or mitigate common software attacks
Requirement 5.2 — Malicious software (malware) is prevented or detected and addressed
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Microsoft:Internet Explorer