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Vulnerabilities

CVE-2026-32197

High
CWE-416 — Weakness Type
Published: Apr 14, 2026  ·  Modified: Apr 21, 2026  ·  Source: NVD
CVSS v3
7.8
🔗 NVD Official
📄 Description (English)

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

🤖 AI Executive Summary

CVE-2026-32197 is a use-after-free vulnerability in Microsoft Office Excel with a CVSS score of 7.8 that enables local code execution. Currently, no patch is available and no public exploit exists, but the vulnerability poses significant risk to organizations relying on Excel for critical operations. Immediate mitigation strategies and compensating controls are essential until Microsoft releases a security update.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 28, 2026 22:52
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses critical risk to Saudi banking sector (SAMA-regulated institutions), government agencies (NCA oversight), and energy sector (ARAMCO, Saudi Aramco subsidiaries) that extensively use Excel for financial modeling, reporting, and data analysis. Telecom operators (STC, Mobily) and healthcare institutions managing patient data through Excel-based systems are also at significant risk. The local code execution capability could lead to lateral movement within corporate networks, data exfiltration, and compromise of critical business processes.
🏢 Affected Saudi Sectors
Banking and Financial Services Government and Public Administration Energy and Utilities Telecommunications Healthcare Insurance Manufacturing Retail and E-commerce
⚖️ Saudi Risk Score (AI)
7.8
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Inventory all Excel installations across the organization and identify critical systems
2. Restrict Excel file opening from untrusted sources and disable macros by default
3. Implement application whitelisting to prevent unauthorized code execution
4. Monitor for suspicious Excel process behavior (child process creation, network connections)

COMPENSATING CONTROLS:
1. Disable Excel's ability to execute macros via Group Policy (User Configuration > Administrative Templates > Microsoft Office > Security Settings)
2. Run Excel in Protected View for all files from internet/untrusted locations
3. Implement network segmentation to isolate systems running Excel from sensitive data repositories
4. Deploy endpoint detection and response (EDR) solutions with behavioral monitoring for Excel processes
5. Restrict local administrator privileges to prevent privilege escalation post-exploitation

DETECTION RULES:
1. Monitor for Excel.exe spawning child processes (cmd.exe, powershell.exe, rundll32.exe)
2. Alert on Excel accessing suspicious registry keys or system files
3. Track unusual network connections initiated by Excel processes
4. Monitor for Excel crash dumps and memory access violations
5. Implement file integrity monitoring on critical Excel workbooks

PATCHING GUIDANCE:
1. Subscribe to Microsoft Security Update Guide for CVE-2026-32197 patch release
2. Establish expedited patching process for Excel once patch becomes available
3. Test patches in isolated environment before enterprise deployment
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. حصر جميع تثبيتات Excel في المنظمة وتحديد الأنظمة الحرجة
2. تقييد فتح ملفات Excel من مصادر غير موثوقة وتعطيل وحدات الماكروز افتراضيًا
3. تطبيق قائمة التطبيقات المسموحة لمنع تنفيذ الأكواد غير المصرح بها
4. مراقبة السلوك المريب لعملية Excel (إنشاء عمليات فرعية، اتصالات شبكية)

الضوابط البديلة:
1. تعطيل قدرة Excel على تنفيذ وحدات الماكروز عبر Group Policy
2. تشغيل Excel في Protected View لجميع الملفات من الإنترنت والمصادر غير الموثوقة
3. تطبيق تقسيم الشبكة لعزل الأنظمة التي تشغل Excel عن مستودعات البيانات الحساسة
4. نشر حلول الكشف والاستجابة (EDR) مع مراقبة السلوك لعمليات Excel
5. تقييد امتيازات المسؤول المحلي لمنع تصعيد الامتيازات بعد الاستغلال

قواعد الكشف:
1. مراقبة Excel.exe لإنشاء عمليات فرعية
2. تنبيهات عند وصول Excel إلى مفاتيح تسجيل مريبة
3. تتبع الاتصالات الشبكية غير العادية من عمليات Excel
4. مراقبة أعطال Excel وانتهاكات الوصول إلى الذاكرة
5. تطبيق مراقبة سلامة الملفات على مصنفات Excel الحرجة

إرشادات التصحيح:
1. الاشتراك في Microsoft Security Update Guide لإصدار التصحيح
2. إنشاء عملية تصحيح معجلة عند توفر التصحيح
3. اختبار التصحيحات في بيئة معزولة قبل النشر
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Information Security Policies and Procedures ECC 2024 A.6.1.1 - Organization of Information Security ECC 2024 A.8.1.1 - User Endpoint Devices ECC 2024 A.8.2.1 - Privileged Access Rights ECC 2024 A.8.3.1 - Information Access Restriction ECC 2024 A.12.2.1 - Change Management ECC 2024 A.12.6.1 - Management of Technical Vulnerabilities
🔵 SAMA CSF
SAMA CSF ID.GV-1 - Organizational Cybersecurity Policy SAMA CSF PR.AC-1 - Access Control Policy SAMA CSF PR.DS-6 - Data Protection SAMA CSF DE.CM-1 - Detection and Analysis SAMA CSF RS.MI-1 - Incident Response Planning
🟡 ISO 27001:2022
ISO 27001:2022 A.5.1 - Policies for Information Security ISO 27001:2022 A.6.1 - Organization of Information Security ISO 27001:2022 A.8.1 - User Endpoint Devices ISO 27001:2022 A.8.2 - Privileged Access Rights ISO 27001:2022 A.12.2 - Change Management ISO 27001:2022 A.12.6 - Management of Technical Vulnerabilities
🟣 PCI DSS v4.0.1
PCI DSS 2.4 - Configuration Standards PCI DSS 6.2 - Security Patches PCI DSS 11.2 - Vulnerability Scanning
📊 CVSS Score
7.8
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack VectorL — Low / Local
Attack ComplexityL — Low / Local
Privileges RequiredN — None / Network
User InteractionR — Required
ScopeU — Unchanged
ConfidentialityH — High
IntegrityH — High
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score7.8
CWECWE-416
EPSS0.06%
Exploit No
Patch ✗ No
Published 2026-04-14
Source Feed nvd
Views 4
🇸🇦 Saudi Risk Score
7.8
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-416
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