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Global data_breach Government HIGH 43m Global malware Software Development CRITICAL 52m Global phishing Multiple Sectors HIGH 1h Global vulnerability Web Applications CRITICAL 1h Global apt Critical Infrastructure CRITICAL 1h Global ransomware Multiple sectors CRITICAL 2h Global supply_chain Software Development, IT Infrastructure, Technology CRITICAL 3h Global vulnerability,data_breach,general Technology, Industrial Control Systems, Telecommunications HIGH 3h Global general Consumer Electronics and Retail MEDIUM 6h Global supply_chain Software Development and Technology HIGH 6h Global data_breach Government HIGH 43m Global malware Software Development CRITICAL 52m Global phishing Multiple Sectors HIGH 1h Global vulnerability Web Applications CRITICAL 1h Global apt Critical Infrastructure CRITICAL 1h Global ransomware Multiple sectors CRITICAL 2h Global supply_chain Software Development, IT Infrastructure, Technology CRITICAL 3h Global vulnerability,data_breach,general Technology, Industrial Control Systems, Telecommunications HIGH 3h Global general Consumer Electronics and Retail MEDIUM 6h Global supply_chain Software Development and Technology HIGH 6h Global data_breach Government HIGH 43m Global malware Software Development CRITICAL 52m Global phishing Multiple Sectors HIGH 1h Global vulnerability Web Applications CRITICAL 1h Global apt Critical Infrastructure CRITICAL 1h Global ransomware Multiple sectors CRITICAL 2h Global supply_chain Software Development, IT Infrastructure, Technology CRITICAL 3h Global vulnerability,data_breach,general Technology, Industrial Control Systems, Telecommunications HIGH 3h Global general Consumer Electronics and Retail MEDIUM 6h Global supply_chain Software Development and Technology HIGH 6h
Vulnerabilities

CVE-2026-21219

High
Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.
CWE-416 — Weakness Type
Published: Jan 13, 2026  ·  Modified: Feb 28, 2026  ·  Source: NVD
CVSS v3
7.0
🔗 NVD Official
📄 Description (English)

Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.

🤖 AI Executive Summary

CVE-2026-21219 is a use-after-free vulnerability in Windows SDK Inbox COM Objects that allows local code execution with high severity (CVSS 7.0). This vulnerability requires local access but poses significant risk to development environments and systems where SDK components are installed. Immediate patching is recommended as the vulnerability affects core Windows SDK components used across enterprise environments.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 10, 2026 08:02
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi government IT development departments, financial institutions using Windows SDK for internal development, telecommunications companies (STC, Mobily) with development infrastructure, and ARAMCO's IT development teams. Organizations under NCA and SAMA oversight conducting software development are at elevated risk. The vulnerability affects development workstations and build servers, potentially compromising source code integrity and enabling supply chain attacks on critical Saudi infrastructure software.
🏢 Affected Saudi Sectors
Government - IT Development Banking and Financial Services Telecommunications Energy and Oil & Gas Healthcare IT Development Defense and Security
⚖️ Saudi Risk Score (AI)
7.2
/ 10.0
🔧 Remediation Steps (English)
1. IMMEDIATE ACTIONS:
- Identify all systems with Windows SDK installed using asset inventory tools
- Isolate development environments from production networks if possible
- Restrict local access to SDK-equipped systems to authorized developers only
- Review access logs for suspicious local activity on development machines

2. PATCHING GUIDANCE:
- Apply Microsoft's security update for Windows SDK immediately upon release
- Prioritize patching development servers and build infrastructure
- Test patches in isolated development environment before production deployment
- Maintain patch deployment records for compliance audits

3. COMPENSATING CONTROLS:
- Implement application whitelisting on development systems
- Enable Windows Defender Application Guard for SDK components
- Use privilege access management (PAM) to restrict local admin rights
- Monitor COM object instantiation using Windows Event Viewer (Event ID 4688)

4. DETECTION RULES:
- Monitor for suspicious COM object creation: Look for unexpected COM instantiation from non-standard processes
- Track memory access violations in SDK processes
- Alert on privilege escalation attempts from development accounts
- Monitor for unusual child process spawning from SDK-related executables
🔧 خطوات المعالجة (العربية)
1. الإجراءات الفورية:
- تحديد جميع الأنظمة التي تحتوي على Windows SDK المثبت باستخدام أدوات جرد الأصول
- عزل بيئات التطوير عن شبكات الإنتاج إن أمكن
- تقييد الوصول المحلي للأنظمة المزودة بـ SDK للمطورين المصرح لهم فقط
- مراجعة سجلات الوصول للنشاط المريب على آلات التطوير

2. إرشادات التصحيح:
- تطبيق تحديث الأمان من Microsoft لـ Windows SDK فوراً عند الإصدار
- إعطاء الأولوية لتصحيح خوادم التطوير والبنية التحتية للبناء
- اختبار التصحيحات في بيئة تطوير معزولة قبل نشرها في الإنتاج
- الاحتفاظ بسجلات نشر التصحيحات لتدقيقات الامتثال

3. الضوابط البديلة:
- تنفيذ قائمة بيضاء للتطبيقات على أنظمة التطوير
- تفعيل Windows Defender Application Guard لمكونات SDK
- استخدام إدارة الوصول المميز (PAM) لتقييد حقوق المسؤول المحلي
- مراقبة إنشاء كائنات COM باستخدام Windows Event Viewer (معرّف الحدث 4688)

4. قواعد الكشف:
- مراقبة إنشاء كائنات COM المريبة: البحث عن إنشاء COM غير متوقع من عمليات غير قياسية
- تتبع انتهاكات الوصول للذاكرة في عمليات SDK
- التنبيه على محاولات تصعيد الامتيازات من حسابات التطوير
- مراقبة توليد العمليات الفرعية غير المعتادة من الملفات التنفيذية المتعلقة بـ SDK
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Access Control Policies ECC 2024 A.8.1.1 - Asset Management ECC 2024 A.12.2.1 - Change Management ECC 2024 A.12.6.1 - Management of Technical Vulnerabilities
🔵 SAMA CSF
ID.AM-1 - Asset Management PR.AC-1 - Access Control PR.PT-2 - Protective Technology DE.CM-8 - Vulnerability Scans
🟡 ISO 27001:2022
A.5.1 - Policies for Information Security A.8.1 - Asset Management A.12.2 - Change Management A.12.6 - Management of Technical Vulnerabilities A.14.2 - Development and Change Management
📦 Affected Products / CPE 1 entries
microsoft:windows_software_development_kit
📊 CVSS Score
7.0
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack VectorL — Low / Local
Attack ComplexityH — High
Privileges RequiredN — None / Network
User InteractionR — Required
ScopeU — Unchanged
ConfidentialityH — High
IntegrityH — High
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score7.0
CWECWE-416
EPSS0.06%
Exploit No
Patch ✓ Yes
Published 2026-01-13
Source Feed nvd
Views 3
🇸🇦 Saudi Risk Score
7.2
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-416
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