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Global data_breach Multiple sectors HIGH 34m Global vulnerability Government and Critical Infrastructure CRITICAL 41m Global vulnerability Multiple sectors CRITICAL 58m 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 34m Global vulnerability Government and Critical Infrastructure CRITICAL 41m Global vulnerability Multiple sectors CRITICAL 58m 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 34m Global vulnerability Government and Critical Infrastructure CRITICAL 41m Global vulnerability Multiple sectors CRITICAL 58m 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-2021-30952

Critical 🇺🇸 CISA KEV ⚡ Exploit Available
Apple Multiple Products Integer Overflow or Wraparound Vulnerability — Apple tvOS, macOS, Safari, iPadOS and watchOS contain an integer overflow or wraparound vulnerability due to the processing of ma
Published: Mar 5, 2026  ·  Source: CISA_KEV
CVSS v3
9.0
🔗 NVD Official
📄 Description (English)

Apple Multiple Products Integer Overflow or Wraparound Vulnerability — Apple tvOS, macOS, Safari, iPadOS and watchOS contain an integer overflow or wraparound vulnerability due to the processing of maliciously crafted web content that may lead to arbitrary code execution.

🤖 AI Executive Summary

CVE-2021-30952 is a critical integer overflow vulnerability affecting Apple's WebKit engine across tvOS, macOS, Safari, iPadOS, and watchOS. With a CVSS score of 9.0 and confirmed exploit availability, this vulnerability allows remote attackers to execute arbitrary code through maliciously crafted web content. The absence of patch information combined with active exploitation makes this a severe threat requiring immediate defensive measures.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Mar 17, 2026 00:58
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses severe risks to Saudi organizations heavily reliant on Apple devices. Banking sector (SAMA-regulated institutions) faces critical exposure as mobile banking apps and web portals accessed via Safari are vulnerable to account takeover and financial fraud. Government entities under NCA oversight using Apple devices for official communications risk data exfiltration and unauthorized access to classified systems. Healthcare organizations using iPads for patient management systems face HIPAA-equivalent violations and patient data breaches. Energy sector (ARAMCO and affiliates) using Apple devices for operational technology interfaces risk industrial espionage. Telecom providers (STC, Mobily, Zain) face subscriber data exposure through compromised customer service portals accessed via Safari.
🏢 Affected Saudi Sectors
Banking Government Healthcare Energy Telecommunications Education Retail Corporate
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Deploy web application firewalls (WAF) with rules to detect and block WebKit exploit patterns
2. Implement network segmentation to isolate Apple devices from critical infrastructure
3. Disable JavaScript on Safari for non-essential browsing until patches are available
4. Deploy endpoint detection and response (EDR) solutions on all macOS devices with behavioral analysis

COMPENSATING CONTROLS:
5. Force alternative browsers (Firefox, Chrome) through MDM policies for high-risk users
6. Implement application whitelisting to prevent unauthorized code execution
7. Enable Safari's 'Prevent Cross-Site Tracking' and disable automatic downloads
8. Deploy DNS filtering to block known malicious domains serving WebKit exploits

MONITORING AND DETECTION:
9. Monitor for unusual Safari process behavior: unexpected child processes, memory anomalies, network connections to suspicious IPs
10. Enable comprehensive logging on all Apple devices and forward to SIEM
11. Implement YARA rules for WebKit exploit signatures
12. Conduct immediate vulnerability scans across all Apple device inventory

PATCHING GUIDANCE:
13. Check Apple Security Updates page daily for emergency patches
14. Prioritize patching for internet-facing systems and executive devices
15. Test patches in isolated environment before production deployment
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. نشر جدران حماية تطبيقات الويب (WAF) مع قواعد لاكتشاف وحظر أنماط استغلال WebKit
2. تطبيق تجزئة الشبكة لعزل أجهزة Apple عن البنية التحتية الحرجة
3. تعطيل JavaScript على Safari للتصفح غير الضروري حتى توفر التصحيحات
4. نشر حلول الكشف والاستجابة للنقاط الطرفية (EDR) على جميع أجهزة macOS مع التحليل السلوكي

الضوابط التعويضية:
5. فرض متصفحات بديلة (Firefox، Chrome) من خلال سياسات MDM للمستخدمين عاليي المخاطر
6. تطبيق القائمة البيضاء للتطبيقات لمنع تنفيذ الأكواد غير المصرح بها
7. تفعيل 'منع التتبع عبر المواقع' في Safari وتعطيل التنزيلات التلقائية
8. نشر تصفية DNS لحظر النطاقات الضارة المعروفة التي تقدم استغلالات WebKit

المراقبة والكشف:
9. مراقبة سلوك عملية Safari غير المعتاد: عمليات فرعية غير متوقعة، شذوذات الذاكرة، اتصالات شبكة بعناوين IP مشبوهة
10. تفعيل التسجيل الشامل على جميع أجهزة Apple وإرسالها إلى SIEM
11. تطبيق قواعد YARA لتوقيعات استغلال WebKit
12. إجراء فحوصات فورية للثغرات عبر جميع مخزون أجهزة Apple

إرشادات التصحيح:
13. التحقق يومياً من صفحة تحديثات أمان Apple للتصحيحات الطارئة
14. إعطاء الأولوية للتصحيح للأنظمة المواجهة للإنترنت وأجهزة المسؤولين التنفيذيين
15. اختبار التصحيحات في بيئة معزولة قبل النشر الإنتاجي
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.1.1 - Vulnerability Management 5.1.2 - Patch Management 6.2.1 - Secure Configuration 7.1.1 - Security Monitoring 4.3.1 - Mobile Device Security
🔵 SAMA CSF
CCC-01 - Cybersecurity Governance CCC-04 - Vulnerability Management CCC-06 - Patch Management CCC-09 - Endpoint Security TRM-01 - Third-Party Risk Management
🟡 ISO 27001:2022
A.8.8 - Management of Technical Vulnerabilities A.12.6.1 - Management of Technical Vulnerabilities A.12.2.1 - Controls Against Malware A.14.2.1 - Secure Development Policy
🟣 PCI DSS v4.0
6.2 - Ensure all systems are protected from known vulnerabilities 6.6 - Web application protection 11.2 - Vulnerability scanning
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Apple:Multiple Products
📊 CVSS Score
9.0
/ 10.0 — Critical
📋 Quick Facts
Severity Critical
CVSS Score9.0
Exploit ✓ Yes
Patch ✓ Yes
CISA KEV🇺🇸 Yes
KEV Due Date2026-03-26
Published 2026-03-05
Source Feed cisa_kev
Views 1
🇸🇦 Saudi Risk Score
9.2
/ 10.0 — Saudi Risk
🏷️ Tags
kev actively-exploited
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