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Vulnerabilities

CVE-2026-33837

High
CWE-122 — Weakness Type
Published: May 12, 2026  ·  Modified: May 19, 2026  ·  Source: NVD
CVSS v3
7.8
🔗 NVD Official
📄 Description (English)

Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.

🤖 AI Executive Summary

A heap-based buffer overflow vulnerability in Windows TCP/IP stack allows authenticated local attackers to execute arbitrary code and elevate privileges. This vulnerability requires local access but poses significant risk to Windows-based infrastructure commonly used in Saudi organizations.

📄 Description (Arabic)

ثغرة تجاوز المخزن المؤقت على الكومة في مكدس بروتوكول TCP/IP في Windows تسمح للمستخدمين المصرح لهم محليًا بتنفيذ كود عشوائي وزيادة امتيازاتهم إلى مستوى النظام. تؤثر هذه الثغرة على أنظمة Windows المختلفة وتتطلب وصولاً محليًا للاستغلال. يمكن استخدام هذه الثغرة كجزء من هجمات متعددة المراحل للحصول على السيطرة الكاملة على الأنظمة.

🤖 ملخص تنفيذي (AI)

ثغرة تجاوز المخزن المؤقت على الكومة في مكدس TCP/IP في Windows تسمح للمهاجمين المصرح لهم محليًا بتنفيذ أكواد عشوائية وزيادة الامتيازات. تتطلب هذه الثغرة وصولاً محليًا لكنها تشكل خطراً كبيراً على البنية التحتية المستندة إلى Windows المستخدمة على نطاق واسع في المنظمات السعودية.

🤖 AI Intelligence Analysis Analyzed: May 16, 2026 13:42
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
government banking energy telecom healthcare
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
7.0
/ 10.0
🔧 Remediation Steps (English)
Apply Microsoft security patches immediately upon release. Implement principle of least privilege to restrict local user access. Monitor and restrict local administrative access. Deploy endpoint detection and response (EDR) solutions. Conduct security awareness training on local access risks.
🔧 خطوات المعالجة (العربية)
تطبيق تصحيحات أمان Microsoft فوراً عند إصدارها. تطبيق مبدأ أقل امتياز لتقييد وصول المستخدمين المحليين. مراقبة وتقييد الوصول الإداري المحلي. نشر حلول كشف الاستجابة على نقاط النهاية. إجراء تدريب التوعية الأمنية على مخاطر الوصول المحلي.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
2.1.1 2.2.1 3.1.1 4.1.1
🔵 SAMA CSF
ID.AM-2 PR.AC-1 PR.PT-1 DE.CM-1
🟡 ISO 27001:2022
A.5.1.1 A.6.1.1 A.9.1.1 A.12.6.1
📦 Affected Products / CPE 25 entries
microsoft:windows_10_1607
microsoft:windows_10_1607
microsoft:windows_10_1809
microsoft:windows_10_1809
microsoft:windows_10_21h2
microsoft:windows_10_21h2
microsoft:windows_10_21h2
microsoft:windows_10_22h2
microsoft:windows_10_22h2
microsoft:windows_10_22h2
microsoft:windows_11_23h2
microsoft:windows_11_23h2
microsoft:windows_11_24h2
microsoft:windows_11_24h2
microsoft:windows_11_25h2
microsoft:windows_11_25h2
microsoft:windows_11_26h1
microsoft:windows_11_26h1
microsoft:windows_server_2012:-
microsoft:windows_server_2012:r2
microsoft:windows_server_2016
microsoft:windows_server_2019
microsoft:windows_server_2022
microsoft:windows_server_2022_23h2
microsoft:windows_server_2025
📊 CVSS Score
7.8
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack VectorL — Low / Local
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 Score7.8
CWECWE-122
EPSS0.07%
Exploit No
Patch ✗ No
Published 2026-05-12
Source Feed nvd
🇸🇦 Saudi Risk Score
7.0
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-122
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