📄 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-2021-30563 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 high reliability.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 20, 2026 13:17
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses severe risk to Saudi organizations across all sectors. Banking and financial institutions (SAMA-regulated) face critical risk as customers access online banking through Chrome/Edge browsers. Government entities (NCA oversight) are vulnerable to targeted attacks via phishing with malicious HTML. Healthcare sector risks patient data exposure through browser-based systems. Energy sector (ARAMCO, utilities) could face operational disruption. Telecom providers (STC, Mobily) are at risk for infrastructure compromise. The widespread use of Chromium-based browsers in Saudi Arabia makes this a national-level threat requiring immediate response.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Healthcare and Medical Services
Energy and Utilities
Telecommunications
Education
Retail and E-commerce
Insurance
🎯 MITRE ATT&CK Techniques
T1189 - Service Exploitation (malicious HTML pages)
T1203 - Exploitation for Client Execution (V8 engine exploitation)
T1055 - Process Injection (heap corruption for code execution)
T1566.002 - Phishing: Spearphishing Link (delivery mechanism)
T1190 - Exploit Public-Facing Application (browser as attack surface)
T1499.004 - Application Exhaustion Flood (potential DoS via memory corruption)
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Chromium-based browser deployments (Chrome, Edge, Opera, Brave) across your organization
2. Disable JavaScript execution in browsers handling untrusted content as temporary measure
3. Block access to known malicious domains via web gateway
4. Alert users to avoid clicking suspicious links or visiting untrusted websites
PATCHING GUIDANCE:
1. Deploy Chrome version 91.0.4472.124 or later immediately
2. Deploy Edge version 91.0.864.59 or later
3. Deploy Opera version 77.0 or later
4. Enable automatic browser updates organization-wide
5. Verify patch deployment within 24-48 hours
COMPENSATING CONTROLS:
1. Implement Content Security Policy (CSP) headers on all web applications
2. Deploy Web Application Firewall (WAF) rules to detect malicious HTML patterns
3. Enable browser sandboxing features and verify isolation settings
4. Implement network segmentation to limit lateral movement if compromise occurs
5. Deploy endpoint detection and response (EDR) solutions to monitor for exploitation attempts
DETECTION RULES:
1. Monitor for unusual V8 engine crashes or memory access violations
2. Alert on suspicious JavaScript execution patterns or heap spray attempts
3. Monitor for unexpected child processes spawned from browser processes
4. Track browser crashes followed by system-level process execution
5. Implement YARA rules for known exploit payloads targeting V8
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع نشرات متصفحات Chromium (Chrome و Edge و Opera و Brave) عبر المؤسسة
2. تعطيل تنفيذ JavaScript في المتصفحات التي تتعامل مع محتوى غير موثوق كإجراء مؤقت
3. حظر الوصول إلى النطاقات الضارة المعروفة عبر بوابة الويب
4. تنبيه المستخدمين لتجنب النقر على الروابط المريبة أو زيارة المواقع غير الموثوقة
إرشادات التصحيح:
1. نشر إصدار Chrome 91.0.4472.124 أو أحدث فوراً
2. نشر إصدار Edge 91.0.864.59 أو أحدث
3. نشر إصدار Opera 77.0 أو أحدث
4. تفعيل تحديثات المتصفح التلقائية على مستوى المؤسسة
5. التحقق من نشر التصحيح خلال 24-48 ساعة
الضوابط البديلة:
1. تطبيق رؤوس سياسة أمان المحتوى (CSP) على جميع تطبيقات الويب
2. نشر قواعد جدار حماية تطبيقات الويب (WAF) للكشف عن أنماط HTML الضارة
3. تفعيل ميزات عزل المتصفح والتحقق من إعدادات العزل
4. تطبيق تقسيم الشبكة لتحديد الحركة الجانبية في حالة الاختراق
5. نشر حلول الكشف والاستجابة على نقاط النهاية (EDR) لمراقبة محاولات الاستغلال
قواعد الكشف:
1. مراقبة أعطال محرك V8 غير العادية أو انتهاكات الوصول إلى الذاكرة
2. التنبيه على أنماط تنفيذ JavaScript المريبة أو محاولات رش الذاكرة
3. مراقبة العمليات الفرعية غير المتوقعة التي تنبثق من عمليات المتصفح
4. تتبع أعطال المتصفح متبوعة بتنفيذ العمليات على مستوى النظام
5. تطبيق قواعد YARA للحمولات الاستغلالية المعروفة التي تستهدف V8
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Information Security Policies (browser security standards)
ECC 2024 A.12.2.1 - Change Management (patch deployment procedures)
ECC 2024 A.12.6.1 - Management of Technical Vulnerabilities (vulnerability assessment and remediation)
ECC 2024 A.14.2.1 - Secure Development Policy (secure coding practices for web applications)
🔵 SAMA CSF
SAMA CSF ID.BE-1 - Business Environment (browser security in critical operations)
SAMA CSF PR.IP-12 - Information Protection Processes (patch management)
SAMA CSF DE.CM-8 - Malware Detection (detection of exploitation attempts)
SAMA CSF RS.MI-2 - Incident Response (containment of browser-based compromises)
🟡 ISO 27001:2022
ISO 27001:2022 A.12.3.1 - Segregation of development, test and production environments
ISO 27001:2022 A.14.2.1 - Secure development policy and procedures
ISO 27001:2022 A.12.6.1 - Management of technical vulnerabilities
ISO 27001:2022 A.8.1.3 - Segregation of duties
🟣 PCI DSS v4.0
PCI DSS 6.2 - Ensure all system components and software are protected from known vulnerabilities
PCI DSS 6.1 - Establish a process for identifying and assessing vulnerabilities
PCI DSS 11.2 - Run automated vulnerability scanning tools regularly
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Google:Chromium V8