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Vulnerabilities

CVE-2026-42893

High
CWE-77 — Weakness Type
Published: May 12, 2026  ·  Modified: May 19, 2026  ·  Source: NVD
CVSS v3
7.4
🔗 NVD Official
📄 Description (English)

Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to perform tampering over a network.

🤖 AI Executive Summary

CVE-2026-42893 is a command injection vulnerability in Microsoft 365 Copilot that allows attackers to execute arbitrary commands through improper neutralization of special elements. An unauthorized attacker can tamper with systems over a network without authentication.

📄 Description (Arabic)

ثغرة حقن الأوامر في Microsoft 365 Copilot تنشأ من فشل النظام في معالجة العناصر الخاصة بشكل صحيح في المدخلات. يمكن للمهاجمين استغلال هذه الثغرة لتنفيذ أوامر تعسفية والعبث بالبيانات والأنظمة عبر الشبكة.

🤖 ملخص تنفيذي (AI)

CVE-2026-42893 هو ثغرة حقن أوامر في Microsoft 365 Copilot تسمح للمهاجمين بتنفيذ أوامر تعسفية من خلال عدم معالجة العناصر الخاصة بشكل صحيح. يمكن لمهاجم غير مصرح به العبث بالأنظمة عبر الشبكة.

🤖 AI Intelligence Analysis Analyzed: May 19, 2026 17:19
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
government banking telecom healthcare energy
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
7.0
/ 10.0
🔧 Remediation Steps (English)
Apply Microsoft security updates immediately for Microsoft 365 Copilot. Implement input validation and sanitization for all user-supplied data. Deploy network segmentation to limit Copilot access. Monitor for suspicious command patterns in logs. Restrict Copilot usage to authorized personnel only.
🔧 خطوات المعالجة (العربية)
طبق تحديثات أمان Microsoft فوراً لـ Microsoft 365 Copilot. طبق التحقق من صحة المدخلات وتنظيفها لجميع البيانات المدخلة من المستخدم. نشر تقسيم الشبكة لتحديد وصول Copilot. راقب الأنماط المريبة للأوامر في السجلات. قيد استخدام Copilot للموظفين المصرح لهم فقط.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.1.2 5.2.1
🔵 SAMA CSF
AC-3 SI-10
🟡 ISO 27001:2022
A.12.2.1 A.14.2.1
📦 Affected Products / CPE 1 entries
microsoft:outlook
📊 CVSS Score
7.4
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredN — None / Network
User InteractionR — Required
ScopeC — Changed
ConfidentialityN — None / Network
IntegrityH — High
AvailabilityN — None / Network
📋 Quick Facts
Severity High
CVSS Score7.4
CWECWE-77
EPSS0.05%
Exploit No
Patch ✗ No
Published 2026-05-12
Source Feed nvd
🇸🇦 Saudi Risk Score
7.0
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-77
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