INITIALIZING
📧 info@ciso.sa | 📱 +966550939344 | Riyadh, Kingdom of Saudi Arabia
🔧 Scheduled Maintenance — Saturday 2:00-4:00 AM AST. Some features may be temporarily unavailable.    ●   
💎
Pro Plan 50% Off Unlock all AI features, unlimited reports, and priority support. Upgrade
Search Center
ESC to close
Global malware Financial Services, Cryptocurrency CRITICAL 45m Global general Financial Services and E-commerce MEDIUM 48m Global data_breach Social Media and Communications CRITICAL 1h Global general Cybersecurity Operations HIGH 1h Global phishing Technology and Consumer Services HIGH 1h Global data_breach Multiple sectors HIGH 2h Global vulnerability Government and Critical Infrastructure CRITICAL 2h Global vulnerability Multiple sectors CRITICAL 2h Global apt Financial Services, Government HIGH 2h Global insider Cross-sector CRITICAL 3h Global malware Financial Services, Cryptocurrency CRITICAL 45m Global general Financial Services and E-commerce MEDIUM 48m Global data_breach Social Media and Communications CRITICAL 1h Global general Cybersecurity Operations HIGH 1h Global phishing Technology and Consumer Services HIGH 1h Global data_breach Multiple sectors HIGH 2h Global vulnerability Government and Critical Infrastructure CRITICAL 2h Global vulnerability Multiple sectors CRITICAL 2h Global apt Financial Services, Government HIGH 2h Global insider Cross-sector CRITICAL 3h Global malware Financial Services, Cryptocurrency CRITICAL 45m Global general Financial Services and E-commerce MEDIUM 48m Global data_breach Social Media and Communications CRITICAL 1h Global general Cybersecurity Operations HIGH 1h Global phishing Technology and Consumer Services HIGH 1h Global data_breach Multiple sectors HIGH 2h Global vulnerability Government and Critical Infrastructure CRITICAL 2h Global vulnerability Multiple sectors CRITICAL 2h Global apt Financial Services, Government HIGH 2h Global insider Cross-sector CRITICAL 3h
Vulnerabilities

CVE-2021-21193

Critical 🇺🇸 CISA KEV ⚡ Exploit Available
Google Chromium Blink Use-After-Free Vulnerability — Google Chromium Blink contains a use-after-free vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HT
Published: Nov 3, 2021  ·  Source: CISA_KEV
CVSS v3
9.0
🔗 NVD Official
📄 Description (English)

Google Chromium Blink Use-After-Free Vulnerability — Google Chromium Blink contains a use-after-free 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-2021-21193 is a critical use-after-free vulnerability in Google Chromium Blink affecting multiple browsers including Chrome, Edge, and Opera. Remote attackers can exploit this via crafted HTML pages to achieve heap corruption and potentially execute arbitrary code. With a CVSS score of 9.0 and publicly available exploits, this poses an immediate threat to Saudi organizations and requires urgent patching across all affected browser versions.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 19, 2026 22:58
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses critical risk to Saudi banking sector (SAMA-regulated institutions), government agencies (NCA, NCSC), healthcare providers, and energy sector organizations. High impact on ARAMCO, STC, and other critical infrastructure operators whose employees use affected browsers. Government entities and financial institutions face elevated risk of data exfiltration, credential theft, and system compromise through watering hole attacks targeting Saudi-specific websites and internal portals.
🏢 Affected Saudi Sectors
Banking and Financial Services Government and Public Administration Healthcare Energy and Utilities Telecommunications Critical Infrastructure Education Retail and E-commerce
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all systems running Chrome, Edge, or Opera browsers in your organization
2. Disable JavaScript execution in browsers if operationally feasible as temporary measure
3. Restrict access to untrusted websites and implement web filtering

PATCHING GUIDANCE:
1. Update Google Chrome to version 90.0.4430.85 or later immediately
2. Update Microsoft Edge to version 90.0.818.39 or later
3. Update Opera to version 76.0 or later
4. Deploy patches through MDM/SCCM for enterprise environments
5. Prioritize patching for systems accessing sensitive financial/government portals

COMPENSATING CONTROLS:
1. Implement Content Security Policy (CSP) headers on all web applications
2. Deploy web application firewalls (WAF) to detect malicious HTML payloads
3. Enable browser sandboxing features and restrict plugin execution
4. Monitor for suspicious process creation from browser processes
5. Implement network segmentation to limit lateral movement

DETECTION RULES:
1. Monitor for unexpected child processes spawned by chrome.exe, msedge.exe, or opera.exe
2. Alert on heap corruption indicators in browser memory dumps
3. Track browser crashes and abnormal terminations
4. Monitor for suspicious network connections initiated from browser processes
5. Log and alert on execution of obfuscated JavaScript code
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع الأنظمة التي تعمل بمتصفحات Chrome أو Edge أو Opera في مؤسستك
2. تعطيل تنفيذ JavaScript في المتصفحات إن أمكن كإجراء مؤقت
3. تقييد الوصول إلى المواقع غير الموثوقة وتطبيق تصفية الويب

إرشادات التصحيح:
1. تحديث Google Chrome إلى الإصدار 90.0.4430.85 أو أحدث فوراً
2. تحديث Microsoft Edge إلى الإصدار 90.0.818.39 أو أحدث
3. تحديث Opera إلى الإصدار 76.0 أو أحدث
4. نشر التصحيحات عبر MDM/SCCM للبيئات الموزعة
5. إعطاء الأولوية لتصحيح الأنظمة التي تصل إلى البوابات المالية والحكومية الحساسة

الضوابط البديلة:
1. تطبيق سياسة أمان المحتوى (CSP) على جميع تطبيقات الويب
2. نشر جدران حماية تطبيقات الويب (WAF) للكشف عن حمولات HTML الضارة
3. تفعيل ميزات عزل المتصفح وتقييد تنفيذ المكونات الإضافية
4. مراقبة إنشاء العمليات المريبة من عمليات المتصفح
5. تطبيق تقسيم الشبكة لتحديد الحركة الجانبية

قواعد الكشف:
1. مراقبة العمليات الفرعية غير المتوقعة التي تنشأ من chrome.exe أو msedge.exe أو opera.exe
2. تنبيهات على مؤشرات تلف الذاكرة في تفريغات ذاكرة المتصفح
3. تتبع أعطال المتصفح والإنهاء غير الطبيعي
4. مراقبة الاتصالات الشبكية المريبة التي يبدأها المتصفح
5. تسجيل والتنبيه على تنفيذ أكواد JavaScript المشفرة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Information Security Policies ECC 2024 A.8.1.1 - User Endpoint Devices ECC 2024 A.8.2.1 - Privileged Access Rights ECC 2024 A.12.2.1 - Change Management ECC 2024 A.12.6.1 - Management of Technical Vulnerabilities
🔵 SAMA CSF
SAMA CSF ID.RA-1 - Asset Management SAMA CSF PR.IP-12 - Software Development and Quality Assurance 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 - User Endpoint Devices ISO 27001:2022 A.12.6.1 - Management of Technical Vulnerabilities ISO 27001:2022 A.14.2.1 - Secure Development Policy
🟣 PCI DSS v4.0
PCI DSS 6.2 - Security Patches and Updates PCI DSS 11.2 - Vulnerability Scanning
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Google:Chromium Blink
📊 CVSS Score
9.0
/ 10.0 — Critical
📋 Quick Facts
Severity Critical
CVSS Score9.0
EPSS14.80%
Exploit ✓ Yes
Patch ✓ Yes
CISA KEV🇺🇸 Yes
KEV Due Date2021-11-17
Published 2021-11-03
Source Feed cisa_kev
Views 2
🇸🇦 Saudi Risk Score
9.2
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
kev actively-exploited
Share this CVE
📣 Found this valuable?
Share it with your cybersecurity network
in LinkedIn 𝕏 X / Twitter 💬 WhatsApp ✈ Telegram
🍪 Privacy Preferences
CISO Consulting — Compliant with Saudi Personal Data Protection Law (PDPL)
We use cookies and similar technologies to provide the best experience on our platform. You can choose which types you accept.
🔒
Essential Always On
Required for the website to function properly. Cannot be disabled.
📋 Sessions, CSRF tokens, authentication, language preferences
📊
Analytics
Help us understand how visitors use the site and improve performance.
📋 Page views, session duration, traffic sources, performance metrics
⚙️
Functional
Enable enhanced features like content personalization and preferences.
📋 Dark/light theme, font size, custom dashboards, saved filters
📣
Marketing
Used to deliver content and ads relevant to your interests.
📋 Campaign tracking, retargeting, social media analytics
Privacy Policy →
CISO AI Assistant
Ask anything · Documents · Support
🔐

Introduce Yourself

Enter your details to access the full assistant

Your info is private and never shared
💬
CyberAssist
Online · responds in seconds
5 / 5
🔐 Verify Your Identity

Enter your email to receive a verification code before submitting a support request.

Enter to send · / for commands 0 / 2000
CISO AI · Powered by Anthropic Claude
✦ Quick Survey Help Us Improve CISO Consulting Your feedback shapes the future of our platform — takes less than 2 minutes.
⚠ Please answer this question to continue

How would you rate your overall experience with our platform?

Rate from 1 (poor) to 5 (excellent)

🎉
Thank you!
Your response has been recorded.