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Global data_breach Multiple sectors HIGH 36m Global vulnerability Government and Critical Infrastructure CRITICAL 43m Global vulnerability Multiple sectors CRITICAL 59m Global apt Financial Services, Government HIGH 1h Global insider Cross-sector CRITICAL 1h Global vulnerability Multiple sectors CRITICAL 1h Global vulnerability Information Technology / Software Infrastructure CRITICAL 1h Global data_breach Healthcare CRITICAL 2h Global malware Financial Services HIGH 2h Global vulnerability Technology/Software Development HIGH 2h Global data_breach Multiple sectors HIGH 36m Global vulnerability Government and Critical Infrastructure CRITICAL 43m Global vulnerability Multiple sectors CRITICAL 59m Global apt Financial Services, Government HIGH 1h Global insider Cross-sector CRITICAL 1h Global vulnerability Multiple sectors CRITICAL 1h Global vulnerability Information Technology / Software Infrastructure CRITICAL 1h Global data_breach Healthcare CRITICAL 2h Global malware Financial Services HIGH 2h Global vulnerability Technology/Software Development HIGH 2h Global data_breach Multiple sectors HIGH 36m Global vulnerability Government and Critical Infrastructure CRITICAL 43m Global vulnerability Multiple sectors CRITICAL 59m Global apt Financial Services, Government HIGH 1h Global insider Cross-sector CRITICAL 1h Global vulnerability Multiple sectors CRITICAL 1h Global vulnerability Information Technology / Software Infrastructure CRITICAL 1h Global data_breach Healthcare CRITICAL 2h Global malware Financial Services HIGH 2h Global vulnerability Technology/Software Development HIGH 2h
Vulnerabilities

CVE-2021-38000

Critical 🇺🇸 CISA KEV ⚡ Exploit Available
Google Chromium Intents Improper Input Validation Vulnerability — Google Chromium Intents contains an improper input validation vulnerability that allows a remote attacker to arbitrarily browser to a
Published: Nov 3, 2021  ·  Source: CISA_KEV
CVSS v3
9.0
🔗 NVD Official
📄 Description (English)

Google Chromium Intents Improper Input Validation Vulnerability — Google Chromium Intents contains an improper input validation vulnerability that allows a remote attacker to arbitrarily browser to a malicious URL 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-2021-38000 is a critical improper input validation vulnerability in Google Chromium Intents (CVSS 9.0) that allows remote attackers to redirect browsers to malicious URLs through crafted HTML pages. This affects multiple Chromium-based browsers including Chrome, Edge, and Opera. With publicly available exploits and widespread browser usage across Saudi organizations, immediate patching is essential to prevent credential theft, malware distribution, and data exfiltration.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 21, 2026 04:54
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses severe risk to Saudi banking sector (SAMA-regulated institutions), government agencies (NCA, NCSC), healthcare providers, and energy sector (ARAMCO, SEC). Telecom operators (STC, Mobily, Zain) face risks from compromised employee browsers. Financial services, e-commerce platforms, and educational institutions are at high risk of phishing attacks leveraging malicious URL redirects. The widespread use of Chrome and Edge in Saudi enterprises makes this a critical threat to organizational security posture and customer data protection.
🏢 Affected Saudi Sectors
Banking and Financial Services Government and Public Administration Healthcare and Medical Services Energy and Utilities Telecommunications E-commerce and Retail Education and Research Insurance
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Deploy browser updates immediately: Chrome 93.0.4577.63+, Edge 93.0.961.44+, Opera 77.0+
2. Enforce automatic browser updates via Group Policy (Windows) or MDM solutions
3. Block access to untrusted websites and implement URL filtering
4. Disable JavaScript execution in email clients and restrict HTML email rendering

PATCHING GUIDANCE:
1. Prioritize patching for all user-facing systems and kiosks
2. Test patches in non-production environments before enterprise rollout
3. Verify patch installation: chrome://version/ should show version 93.0.4577.63 or later
4. Monitor for failed update attempts and remediate manually if needed

COMPENSATING CONTROLS:
1. Implement web content filtering to block known malicious domains
2. Deploy endpoint detection and response (EDR) solutions to detect suspicious browser behavior
3. Enable Safe Browsing in Chrome/Edge settings
4. Implement DMARC, SPF, DKIM to prevent phishing emails with malicious links
5. Conduct security awareness training on phishing and malicious URL recognition

DETECTION RULES:
1. Monitor for unexpected browser process spawning with suspicious command-line arguments
2. Alert on browser navigation to known malicious domains or IP addresses
3. Track failed certificate validation warnings in browser logs
4. Monitor for unusual outbound connections from browser processes to non-standard ports
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. نشر تحديثات المتصفح فوراً: Chrome 93.0.4577.63+، Edge 93.0.961.44+، Opera 77.0+
2. فرض تحديثات المتصفح التلقائية عبر Group Policy (Windows) أو حلول MDM
3. حظر الوصول إلى المواقع غير الموثوقة وتنفيذ تصفية عناوين URL
4. تعطيل تنفيذ JavaScript في عملاء البريد الإلكتروني وتقييد عرض البريد الإلكتروني بصيغة HTML

إرشادات التصحيح:
1. أولويات التصحيح لجميع الأنظمة التي تواجه المستخدم والأكشاك
2. اختبار التصحيحات في بيئات غير الإنتاج قبل نشر المؤسسة
3. التحقق من تثبيت التصحيح: chrome://version/ يجب أن يعرض الإصدار 93.0.4577.63 أو أحدث
4. مراقبة محاولات التحديث الفاشلة والعلاج اليدوي إذا لزم الأمر

الضوابط التعويضية:
1. تنفيذ تصفية محتوى الويب لحظر النطاقات الضارة المعروفة
2. نشر حلول الكشف والاستجابة للنقاط النهائية (EDR) للكشف عن سلوك المتصفح المريب
3. تفعيل Safe Browsing في إعدادات Chrome/Edge
4. تنفيذ DMARC و SPF و DKIM لمنع رسائل البريش الإلكتروني للتصيد الاحتيالي برابط ضارة
5. إجراء تدريب الوعي الأمني على التصيد الاحتيالي والتعرف على عناوين URL الضارة

قواعد الكشف:
1. مراقبة عمليات المتصفح غير المتوقعة مع وسائط سطر أوامر مريبة
2. تنبيهات على ملاحة المتصفح إلى نطاقات معروفة ضارة أو عناوين IP
3. تتبع تحذيرات التحقق من الشهادات الفاشلة في سجلات المتصفح
4. مراقبة الاتصالات الخارجية غير العادية من عمليات المتصفح إلى منافذ غير قياسية
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Information Security Policies and Procedures ECC 2024 A.6.1.1 - Access Control and Authentication 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-12 - Information and Communications Technology (ICT) Security SAMA CSF DE.CM-1 - Detection and Analysis SAMA CSF RS.MI-1 - 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 - Management of Technical Vulnerabilities ISO 27001:2022 A.14.2 - Information Security Requirements Analysis and Specification
🟣 PCI DSS v4.0
PCI DSS 6.2 - Security Patches and Updates PCI DSS 11.2 - Vulnerability Scanning PCI DSS 12.2 - Configuration Standards
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Google:Chromium Intents
📊 CVSS Score
9.0
/ 10.0 — Critical
📋 Quick Facts
Severity Critical
CVSS Score9.0
EPSS3.20%
Exploit ✓ Yes
Patch ✓ Yes
CISA KEV🇺🇸 Yes
KEV Due Date2021-11-17
Published 2021-11-03
Source Feed cisa_kev
Views 3
🇸🇦 Saudi Risk Score
9.2
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
kev actively-exploited
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