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Vulnerabilities

CVE-2026-33110

High
CWE-502 — Weakness Type
Published: May 12, 2026  ·  Modified: May 19, 2026  ·  Source: NVD
CVSS v3
8.8
🔗 NVD Official
📄 Description (English)

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

🤖 AI Executive Summary

CVE-2026-33110 is a high-severity deserialization vulnerability in Microsoft Office SharePoint that allows authorized attackers to execute arbitrary code remotely. The vulnerability affects SharePoint's handling of untrusted serialized data, enabling code execution with CVSS score of 8.8.

📄 Description (Arabic)

تتعلق هذه الثغرة بمعالجة Microsoft SharePoint غير الآمنة للبيانات المسلسلة من مصادر غير موثوقة. يمكن للمهاجمين المصرحين استغلال هذه الثغرة لتنفيذ أكواد برمجية عشوائية على خوادم SharePoint عبر الشبكة.

🤖 ملخص تنفيذي (AI)

CVE-2026-33110 هي ثغرة عالية الخطورة في Microsoft Office SharePoint تسمح للمهاجمين المصرحين بتنفيذ أكواد عشوائية عن بعد. تؤثر الثغرة على معالجة SharePoint للبيانات المسلسلة غير الموثوقة، مما يتيح تنفيذ الأكواد بدرجة CVSS 8.8.

🤖 AI Intelligence Analysis Analyzed: May 15, 2026 19:34
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
government banking telecom healthcare
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
8.0
/ 10.0
🔧 Remediation Steps (English)
Update Microsoft Office SharePoint to the latest patched version immediately. Implement network segmentation to restrict SharePoint access to authorized users only. Monitor SharePoint logs for suspicious deserialization activities and apply principle of least privilege to user accounts.
🔧 خطوات المعالجة (العربية)
قم بتحديث Microsoft Office SharePoint إلى أحدث إصدار مصحح فوراً. طبق تقسيم الشبكة لتقييد الوصول إلى SharePoint للمستخدمين المصرحين فقط. راقب سجلات SharePoint للأنشطة المريبة في فك التسلسل وطبق مبدأ الامتيازات الأقل للحسابات.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC-1.1 ECC-2.2 ECC-3.1
🔵 SAMA CSF
ID.BE-1 PR.DS-1 PR.DS-2 DE.CM-1
🟡 ISO 27001:2022
A.12.2.1 A.12.6.1 A.14.2.1
📦 Affected Products / CPE 3 entries
microsoft:sharepoint_server
microsoft:sharepoint_server:2016
microsoft:sharepoint_server:2019
📊 CVSS Score
8.8
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityH — High
IntegrityH — High
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score8.8
CWECWE-502
EPSS0.62%
Exploit No
Patch ✗ No
Published 2026-05-12
Source Feed nvd
🇸🇦 Saudi Risk Score
8.0
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-502
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