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Global phishing Multiple sectors HIGH 25m Global insider Cybersecurity Services CRITICAL 34m Global ransomware Multiple sectors (U.S. companies) CRITICAL 48m Global malware Financial Services, Cryptocurrency CRITICAL 1h Global malware Technology and Cloud Services HIGH 1h Global general Financial Services and E-commerce MEDIUM 1h Global data_breach Social Media and Communications CRITICAL 1h Global general Cybersecurity Operations HIGH 2h Global phishing Technology and Consumer Services HIGH 2h Global data_breach Multiple sectors HIGH 2h Global phishing Multiple sectors HIGH 25m Global insider Cybersecurity Services CRITICAL 34m Global ransomware Multiple sectors (U.S. companies) CRITICAL 48m Global malware Financial Services, Cryptocurrency CRITICAL 1h Global malware Technology and Cloud Services HIGH 1h Global general Financial Services and E-commerce MEDIUM 1h Global data_breach Social Media and Communications CRITICAL 1h Global general Cybersecurity Operations HIGH 2h Global phishing Technology and Consumer Services HIGH 2h Global data_breach Multiple sectors HIGH 2h Global phishing Multiple sectors HIGH 25m Global insider Cybersecurity Services CRITICAL 34m Global ransomware Multiple sectors (U.S. companies) CRITICAL 48m Global malware Financial Services, Cryptocurrency CRITICAL 1h Global malware Technology and Cloud Services HIGH 1h Global general Financial Services and E-commerce MEDIUM 1h Global data_breach Social Media and Communications CRITICAL 1h Global general Cybersecurity Operations HIGH 2h Global phishing Technology and Consumer Services HIGH 2h Global data_breach Multiple sectors HIGH 2h
Vulnerabilities

CVE-2026-24307

Critical
Critical Input Validation Flaw in Microsoft 365 Copilot Enables Information Disclosure
CWE-1287 — Weakness Type
Published: Jan 22, 2026  ·  Modified: Feb 28, 2026  ·  Source: NVD
CVSS v3
9.3
🔗 NVD Official
📄 Description (English)

Improper validation of specified type of input in M365 Copilot allows an unauthorized attacker to disclose information over a network.

🤖 AI Executive Summary

CVE-2026-24307 is a critical vulnerability in Microsoft 365 Copilot that allows unauthorized attackers to disclose sensitive information through improper input validation. The vulnerability has a CVSS score of 9.3, indicating severe risk to organizations using M365 services.

📄 Description (Arabic)

يتعلق هذا الثغرة بفشل في التحقق من صحة المدخلات في Microsoft 365 Copilot مما يسمح بكشف المعلومات الحساسة. يمكن للمهاجمين استغلال هذا الضعف للوصول إلى بيانات المنظمة عبر الشبكة دون تصريح.

🤖 ملخص تنفيذي (AI)

هذا الثغرة الحرجة في Microsoft 365 Copilot تسمح للمهاجمين غير المصرحين بالوصول إلى معلومات حساسة عبر الشبكة. تصنيف CVSS 9.3 يشير إلى خطر شديد على المنظمات التي تستخدم خدمات M365.

🤖 AI Intelligence Analysis Analyzed: Apr 12, 2026 18:48
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
government banking telecom healthcare energy
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
9.0
/ 10.0
🔧 Remediation Steps (English)
Apply Microsoft security patches immediately. Implement strict input validation and sanitization for all Copilot interactions. Enable advanced threat protection and monitor M365 logs for suspicious activities. Restrict Copilot access to authorized users only and implement conditional access policies.
🔧 خطوات المعالجة (العربية)
تطبيق تصحيحات الأمان من Microsoft فوراً. تنفيذ التحقق الصارم من المدخلات وتنظيفها. تفعيل الحماية المتقدمة من التهديدات ومراقبة سجلات M365. تقييد الوصول إلى Copilot للمستخدمين المصرحين فقط وتطبيق سياسات الوصول الشرطية.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.1 5.2 5.3
🔵 SAMA CSF
AC-2 AC-3 SI-10
🟡 ISO 27001:2022
A.9.2.1 A.9.2.5 A.14.2.1
📦 Affected Products / CPE 1 entries
microsoft:365_copilot:-
📊 CVSS Score
9.3
/ 10.0 — Critical
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredN — None / Network
User InteractionR — Required
ScopeC — Changed
ConfidentialityH — High
IntegrityH — High
AvailabilityN — None / Network
📋 Quick Facts
Severity Critical
CVSS Score9.3
CWECWE-1287
EPSS0.15%
Exploit No
Patch ✓ Yes
Published 2026-01-22
Source Feed nvd
Views 2
🇸🇦 Saudi Risk Score
9.0
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
CWE-1287
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