📄 Description (English)
Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an unauthorized attacker to disclose information over an adjacent network.
🤖 AI Executive Summary
CVE-2026-27925 is a use-after-free vulnerability in Windows UPnP Device Host that allows adjacent network attackers to disclose sensitive information. With a CVSS score of 6.5 and no available patch, this poses a moderate risk to organizations with exposed UPnP services. The vulnerability requires network adjacency, limiting exposure but affecting organizations with legacy or IoT devices on corporate networks.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: May 12, 2026 19:36
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations most at risk include: (1) Banking sector (SAMA-regulated banks) with legacy ATM networks and payment processing systems using UPnP; (2) Government agencies (NCA oversight) with networked IoT and legacy infrastructure; (3) Healthcare facilities with medical devices using UPnP for device discovery; (4) Energy sector (ARAMCO, utilities) with industrial control systems; (5) Telecommunications (STC, Mobily) with network infrastructure. Information disclosure could expose network topology, device configurations, and authentication credentials used in adjacent network segments.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Healthcare and Medical Devices
Energy and Utilities
Telecommunications
Manufacturing and Industrial Control Systems
Retail and Point of Sale Systems
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
6.2
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Inventory all Windows systems with UPnP Device Host enabled (typically Windows 7/8/10/11 and Server editions)
2. Disable UPnP on systems where not required: Settings > Network & Internet > Advanced network settings > Network discovery and file sharing
3. Isolate UPnP-enabled devices to trusted network segments using network segmentation
4. Implement network access controls (NAC) to restrict UPnP traffic to authorized devices only
Compensating Controls:
5. Deploy network-based detection: Monitor for UPnP SSDP (Simple Service Discovery Protocol) traffic on ports 1900/UDP and 5000/TCP
6. Implement firewall rules blocking UPnP traffic from untrusted network segments
7. Use VLAN segmentation to isolate IoT and legacy devices from critical systems
8. Enable Windows Defender Exploit Guard and Attack Surface Reduction rules
Detection Rules:
- Alert on SSDP M-SEARCH requests from unexpected sources
- Monitor for UPnP device descriptor requests (HTTP GET on port 5000)
- Track failed UPnP service enumeration attempts
- Monitor for memory corruption indicators in svchost.exe processes hosting UPnP
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. حصر جميع أنظمة Windows مع تفعيل خدمة UPnP Device Host (عادة Windows 7/8/10/11 وإصدارات Server)
2. تعطيل UPnP على الأنظمة التي لا تتطلبها: Settings > Network & Internet > Advanced network settings > Network discovery
3. عزل الأجهزة المفعلة لـ UPnP في قطاعات شبكة موثوقة باستخدام تقسيم الشبكة
4. تطبيق عناصر تحكم الوصول إلى الشبكة (NAC) لتقييد حركة UPnP للأجهزة المصرح بها فقط
عناصر التحكم البديلة:
5. نشر الكشف القائم على الشبكة: مراقبة حركة SSDP على المنافذ 1900/UDP و 5000/TCP
6. تطبيق قواعد جدار الحماية لحظر حركة UPnP من قطاعات الشبكة غير الموثوقة
7. استخدام تقسيم VLAN لعزل أجهزة إنترنت الأشياء والأجهزة القديمة عن الأنظمة الحرجة
8. تفعيل Windows Defender Exploit Guard وقواعد تقليل سطح الهجوم
قواعد الكشف:
- تنبيهات على طلبات SSDP M-SEARCH من مصادر غير متوقعة
- مراقبة طلبات واصفات أجهزة UPnP (HTTP GET على المنفذ 5000)
- تتبع محاولات تعداد خدمات UPnP الفاشلة
- مراقبة مؤشرات تلف الذاكرة في عمليات svchost.exe التي تستضيف UPnP
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Network access control and segmentation
ECC 2024 A.5.2.1 - Secure configuration management
ECC 2024 A.5.3.1 - Monitoring and detection of unauthorized access
ECC 2024 A.6.2.1 - Vulnerability management and patching
🔵 SAMA CSF
SAMA CSF ID.BE-1 - Asset management and inventory
SAMA CSF PR.AC-3 - Access control and network segmentation
SAMA CSF PR.DS-1 - Data protection and encryption
SAMA CSF DE.CM-1 - Detection and monitoring capabilities
🟡 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.8.1 - User endpoint devices
ISO 27001:2022 A.8.3 - Access control
ISO 27001:2022 A.12.6 - Management of technical vulnerabilities
🟣 PCI DSS v4.0.1
PCI DSS 1.2.1 - Network segmentation and firewall configuration
PCI DSS 6.2 - Vulnerability management program
PCI DSS 11.2 - Vulnerability scanning and assessment
🔗 References & Sources 1