📄 Description (English)
Use after free in Broadcast DVR allows an authorized attacker to elevate privileges locally.
🤖 AI Executive Summary
CVE-2026-23667 is a use-after-free vulnerability in Windows Broadcast DVR affecting multiple Windows 10 and 11 versions, allowing authorized local attackers to elevate privileges. With a CVSS score of 7.0 and no public exploit currently available, this represents a moderate-to-high risk requiring prompt patching. The vulnerability requires local access but enables privilege escalation, making it critical for organizations with multi-user systems or shared workstations.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: May 10, 2026 08:02
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi government entities, financial institutions, and corporate environments utilizing Windows 10/11 workstations. Government agencies (NCA, GOSI, MOI) managing multi-user systems face elevated risk of insider privilege escalation. Banking sector (SAMA-regulated institutions, Al Rajhi, Riyad Bank) could experience unauthorized access to sensitive financial systems if workstations are compromised. Healthcare organizations (MOH facilities, private hospitals) managing patient data on affected Windows versions require immediate attention. Telecom operators (STC, Mobily, Zain) and energy sector (ARAMCO, SEC) with Windows-based infrastructure should prioritize patching. The vulnerability is particularly concerning in environments with shared workstations or remote access scenarios common in Saudi organizations.
🏢 Affected Saudi Sectors
Government (NCA, GOSI, MOI)
Banking and Financial Services (SAMA-regulated)
Healthcare (MOH, Private Hospitals)
Energy (ARAMCO, SEC)
Telecommunications (STC, Mobily, Zain)
Education
Corporate/Enterprise
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
7.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Inventory all Windows 10 (versions 1809, 21H2, 22H2) and Windows 11 (23H2) systems across your organization
2. Prioritize patching for systems with multiple user accounts or shared access
3. Restrict local access and enforce strong authentication for privileged accounts
4. Monitor for suspicious privilege escalation attempts
PATCHING GUIDANCE:
1. Apply Microsoft security updates immediately when available for affected Windows versions
2. Test patches in non-production environments first
3. Implement phased rollout starting with critical systems (government, banking, healthcare)
4. Ensure Windows Update is configured for automatic security updates
COMPENSATING CONTROLS (if patching delayed):
1. Disable Broadcast DVR service if not required: Services.msc > Windows.Media.Streaming.Service > Disable
2. Implement application whitelisting to restrict execution of DVR-related processes
3. Enforce principle of least privilege - remove unnecessary local admin rights
4. Enable Windows Defender Application Guard for additional isolation
5. Implement Device Guard/Credential Guard on supported systems
DETECTION RULES:
1. Monitor Event Viewer for privilege escalation attempts (Event ID 4688 with elevated token claims)
2. Track Broadcast DVR service crashes or unexpected restarts
3. Alert on unauthorized access to SYSTEM-level resources from user-mode processes
4. Monitor for suspicious memory access patterns in dvr*.dll processes
5. Implement EDR solutions to detect use-after-free exploitation patterns
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. قم بحصر جميع أنظمة Windows 10 (الإصدارات 1809 و 21H2 و 22H2) و Windows 11 (23H2) عبر مؤسستك
2. أعط الأولوية لتصحيح الأنظمة التي تحتوي على حسابات مستخدمين متعددة أو وصول مشترك
3. قيد الوصول المحلي وفرض المصادقة القوية للحسابات المميزة
4. راقب محاولات رفع الامتيازات المريبة
إرشادات التصحيح:
1. طبق تحديثات أمان Microsoft فورًا عند توفرها لإصدارات Windows المتأثرة
2. اختبر التصحيحات في بيئات غير الإنتاج أولاً
3. نفذ طرح مرحلي بدءًا من الأنظمة الحرجة (حكومية وبنكية وصحية)
4. تأكد من تكوين Windows Update للتحديثات الأمنية التلقائية
الضوابط البديلة (إذا تأخر التصحيح):
1. عطل خدمة Broadcast DVR إذا لم تكن مطلوبة: Services.msc > Windows.Media.Streaming.Service > تعطيل
2. طبق قائمة بيضاء للتطبيقات لتقييد تنفيذ العمليات المتعلقة بـ DVR
3. فرض مبدأ أقل امتياز - أزل حقوق المسؤول المحلي غير الضرورية
4. فعّل Windows Defender Application Guard للعزل الإضافي
5. طبق Device Guard/Credential Guard على الأنظمة المدعومة
قواعد الكشف:
1. راقب Event Viewer لمحاولات رفع الامتيازات (معرف الحدث 4688 مع مطالبات الرموز المرفوعة)
2. تتبع أعطال خدمة Broadcast DVR أو إعادة التشغيل غير المتوقعة
3. تنبيه الوصول غير المصرح به إلى موارد مستوى SYSTEM من عمليات وضع المستخدم
4. راقب أنماط الوصول إلى الذاكرة المريبة في عمليات dvr*.dll
5. طبق حلول EDR للكشف عن أنماط استغلال use-after-free
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 - 5.1.1: Access Control and Authentication
ECC 2024 - 5.2.1: Privilege Management
ECC 2024 - 5.3.1: System Hardening
ECC 2024 - 6.1.1: Vulnerability Management
🔵 SAMA CSF
SAMA CSF - ID.AM-2: Software Inventory
SAMA CSF - PR.AC-1: Access Control
SAMA CSF - PR.PT-3: Least Privilege Implementation
SAMA CSF - DE.CM-8: Vulnerability Scanning
🟡 ISO 27001:2022
ISO 27001:2022 - A.5.15: Access Control
ISO 27001:2022 - A.8.1: User Endpoint Devices
ISO 27001:2022 - A.8.2: Privileged Access Rights
ISO 27001:2022 - A.12.6.1: Management of Technical Vulnerabilities
🟣 PCI DSS v4.0.1
PCI DSS 4.0 - 2.2.4: Configure System Security Parameters
PCI DSS 4.0 - 6.2: Ensure Security Patches Installed
PCI DSS 4.0 - 7.1: Limit Access to System Components
📦 Affected Products / CPE 16 entries
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