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Vulnerabilities

CVE-2026-34351

High
CWE-362 — Weakness Type
Published: May 12, 2026  ·  Modified: May 19, 2026  ·  Source: NVD
CVSS v3
7.8
🔗 NVD Official
📄 Description (English)

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an authorized attacker to elevate privileges locally.

🤖 AI Executive Summary

CVE-2026-34351 is a Windows TCP/IP race condition vulnerability affecting multiple Windows 10 versions that allows authorized local attackers to escalate privileges. With a CVSS score of 7.8 and no patch currently available, this poses a significant risk to Saudi organizations relying on Windows infrastructure. The vulnerability requires local access but enables full system compromise, making it critical for immediate mitigation planning.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 17, 2026 10:02
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi government agencies (NCA, NCSC), banking sector (SAMA-regulated institutions, major banks), healthcare organizations, and energy sector (ARAMCO, utilities). Windows 10 is widely deployed across Saudi enterprises for workstations and servers. The privilege escalation capability could enable attackers to compromise critical systems, access sensitive data, and establish persistent access. Government and financial institutions are particularly vulnerable due to high-value targets and regulatory compliance requirements.
🏢 Affected Saudi Sectors
Government (NCA, NCSC, Ministry of Interior) Banking and Financial Services (SAMA-regulated banks) Healthcare (MOH, private hospitals) Energy (ARAMCO, utilities) Telecommunications (STC, Mobily, Zain) Education Critical Infrastructure
⚖️ Saudi Risk Score (AI)
7.8
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Inventory all Windows 10 systems (versions 1607, 1809, 21H2, 22H2) across your organization
2. Restrict local administrative access and enforce principle of least privilege
3. Disable unnecessary network services and TCP/IP features not required for operations
4. Implement application whitelisting to prevent unauthorized privilege escalation attempts

Compensating Controls (until patch available):
5. Deploy endpoint detection and response (EDR) solutions to monitor for suspicious process creation and privilege escalation attempts
6. Enable Windows Defender Exploit Guard and Attack Surface Reduction rules
7. Monitor Event Viewer for privilege escalation events (Event ID 4688, 4689)
8. Implement network segmentation to limit lateral movement post-exploitation
9. Enforce multi-factor authentication for critical systems and administrative access
10. Apply Windows security updates immediately when available from Microsoft

Detection Rules:
- Monitor for unusual TCP/IP stack manipulation attempts
- Alert on processes attempting to modify system drivers or kernel objects
- Track failed and successful privilege escalation attempts
- Monitor for suspicious use of Windows APIs related to synchronization primitives
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. قم بحصر جميع أنظمة Windows 10 (الإصدارات 1607 و 1809 و 21H2 و 22H2) عبر مؤسستك
2. قيد الوصول الإداري المحلي وفرض مبدأ أقل امتياز
3. عطل الخدمات الشبكية غير الضرورية وميزات TCP/IP غير المطلوبة للعمليات
4. طبق قائمة التطبيقات المسموحة لمنع محاولات تصعيد الامتيازات غير المصرح بها

الضوابط التعويضية (حتى توفر التصحيح):
5. نشر حلول كشف الاستجابة للنقاط النهائية (EDR) لمراقبة محاولات إنشاء العمليات المريبة
6. فعل Windows Defender Exploit Guard وقواعد تقليل سطح الهجوم
7. راقب Event Viewer لأحداث تصعيد الامتيازات (معرف الحدث 4688 و 4689)
8. طبق تقسيم الشبكة لتحديد الحركة الجانبية بعد الاستغلال
9. فرض المصادقة متعددة العوامل للأنظمة الحرجة والوصول الإداري
10. طبق تحديثات أمان Windows فورًا عند توفرها من Microsoft
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Access Control Policies ECC 2024 A.5.2.1 - User Registration and De-registration ECC 2024 A.5.3.1 - Access Rights Review ECC 2024 A.8.1.1 - Information Security Awareness ECC 2024 A.12.2.1 - Change Management ECC 2024 A.12.6.1 - Management of Technical Vulnerabilities
🔵 SAMA CSF
SAMA CSF ID.AM-2 - Hardware and Software Inventory SAMA CSF PR.AC-1 - Access Control Policy SAMA CSF PR.AC-4 - Access Rights Management SAMA CSF DE.CM-1 - System Monitoring SAMA CSF RS.MI-2 - Incident Response Procedures
🟡 ISO 27001:2022
ISO 27001:2022 A.5.1 - Policies for Information Security ISO 27001:2022 A.5.3 - Segregation of Duties ISO 27001:2022 A.6.1 - Internal Organization ISO 27001:2022 A.8.1 - Screening ISO 27001:2022 A.12.6 - Management of Technical Vulnerabilities ISO 27001:2022 A.14.2 - System Development and Acceptance
🟣 PCI DSS v4.0.1
PCI DSS 2.2 - Configuration Standards PCI DSS 6.2 - Security Patches PCI DSS 7.1 - Access Control Implementation PCI DSS 10.2 - User Activity Logging
📦 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-362
EPSS0.04%
Exploit No
Patch ✗ No
Published 2026-05-12
Source Feed nvd
🇸🇦 Saudi Risk Score
7.8
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-362
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