📄 Description (English)
Google Chromium V8 Type Confusion Vulnerability — Google Chromium V8 Engine contains a type confusion vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
🤖 AI Executive Summary
CVE-2021-30551 is a critical type confusion vulnerability in Google Chromium V8 engine (CVSS 9.0) allowing remote attackers to exploit heap corruption through malicious HTML pages. This affects all Chromium-based browsers including Chrome, Edge, and Opera, with public exploits available. Immediate patching is essential as this vulnerability enables arbitrary code execution with browser privileges.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 20, 2026 13:18
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses critical risk to Saudi organizations across all sectors. Banking and financial institutions (SAMA-regulated) face direct threats through web-based banking platforms and employee browsers. Government entities (NCA oversight) are at high risk from targeted attacks via email and web access. Healthcare organizations using web-based systems, energy sector (ARAMCO, utilities), and telecommunications (STC, Mobily) all depend on Chromium-based browsers for critical operations. Educational institutions and private enterprises are equally vulnerable. The availability of public exploits significantly increases attack likelihood against Saudi infrastructure.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Healthcare and Medical Services
Energy and Utilities
Telecommunications
Education
Retail and E-commerce
Manufacturing
Insurance
Real Estate and Construction
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Inventory all Chromium-based browsers (Chrome, Edge, Opera) across organization
2. Disable browser access to untrusted websites until patching complete
3. Block malicious domains using web filtering/proxy controls
4. Monitor for suspicious browser process behavior and heap corruption indicators
PATCHING GUIDANCE:
1. Update Google Chrome to version 91.0.4472.124 or later immediately
2. Update Microsoft Edge to version 91.0.864.59 or later
3. Update Opera to version 77.0 or later
4. Deploy patches via MDM/SCCM for enterprise environments
5. Prioritize patching for systems with internet-facing roles
COMPENSATING CONTROLS (if immediate patching delayed):
1. Implement Content Security Policy (CSP) headers on all web applications
2. Enable browser sandboxing features and Site Isolation
3. Deploy Web Application Firewall (WAF) rules to detect malicious HTML patterns
4. Restrict browser execution of JavaScript from untrusted sources
5. Use endpoint detection and response (EDR) tools to monitor V8 engine exploitation attempts
DETECTION RULES:
1. Monitor for abnormal V8 heap allocation patterns and memory corruption indicators
2. Alert on browser crashes with heap corruption signatures
3. Track unusual child process spawning from browser processes
4. Monitor for suspicious network connections initiated by browser
5. Log and alert on execution of code from browser memory regions
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. حصر جميع متصفحات Chromium (Chrome و Edge و Opera) في المنظمة
2. تعطيل الوصول إلى المواقع غير الموثوقة حتى اكتمال التصحيح
3. حجب النطاقات الضارة باستخدام عوامل تصفية الويب والوكيل
4. مراقبة السلوك المريب لعملية المتصفح ومؤشرات تلف الذاكرة
إرشادات التصحيح:
1. تحديث Google Chrome إلى الإصدار 91.0.4472.124 أو أحدث فوراً
2. تحديث Microsoft Edge إلى الإصدار 91.0.864.59 أو أحدث
3. تحديث Opera إلى الإصدار 77.0 أو أحدث
4. نشر التصحيحات عبر MDM/SCCM في بيئات المؤسسات
5. إعطاء الأولوية لتصحيح الأنظمة ذات الأدوار المكشوفة على الإنترنت
الضوابط البديلة (إذا تأخر التصحيح الفوري):
1. تطبيق سياسة أمان المحتوى (CSP) على جميع تطبيقات الويب
2. تفعيل ميزات الحماية الرملية للمتصفح وعزل الموقع
3. نشر قواعد جدار حماية تطبيقات الويب (WAF) للكشف عن أنماط HTML الضارة
4. تقييد تنفيذ JavaScript من مصادر غير موثوقة
5. استخدام أدوات الكشف والاستجابة للنقاط النهائية (EDR) لمراقبة محاولات استغلال V8
قواعد الكشف:
1. مراقبة أنماط تخصيص الذاكرة غير الطبيعية في V8 ومؤشرات تلف الذاكرة
2. تنبيهات على أعطال المتصفح مع توقيعات تلف الذاكرة
3. تتبع توليد العمليات الفرعية غير المعتادة من عمليات المتصفح
4. مراقبة الاتصالات الشبكية المريبة التي يبدأها المتصفح
5. تسجيل والتنبيه على تنفيذ الأكواد من مناطق ذاكرة المتصفح
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Information Security Policies and Procedures
ECC 2024 A.6.1.1 - Organization of Information Security
ECC 2024 A.8.1.1 - Asset Management and Inventory
ECC 2024 A.12.2.1 - Change Management
ECC 2024 A.12.6.1 - Management of Technical Vulnerabilities
🔵 SAMA CSF
SAMA CSF ID.BE-1 - Business Environment
SAMA CSF PR.IP-1 - Information Protection Processes and Procedures
SAMA CSF PR.IP-12 - Information and Records Management
SAMA CSF DE.CM-8 - Vulnerability Scans
SAMA CSF RS.MI-2 - Incident Response and Management
🟡 ISO 27001:2022
ISO 27001:2022 A.5.1 - Policies for Information Security
ISO 27001:2022 A.8.1 - Asset Management
ISO 27001:2022 A.12.2 - Configuration Management
ISO 27001:2022 A.12.6 - Management of Technical Vulnerabilities and Exposures
ISO 27001:2022 A.14.2 - Information Security Requirements Analysis and Specification
🟣 PCI DSS v4.0
PCI DSS 2.4 - Document and Implement Security Configuration Standards
PCI DSS 6.2 - Ensure Security Patches are Installed
PCI DSS 11.2 - Run Automated Vulnerability Scanning Tools
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Google:Chromium V8