📄 Description (English)
A security flaw has been discovered in D-Link DIR-825 up to 3.00b32. This impacts the function AddPortMapping of the file upnpsoap.c of the component miniupnpd. Performing a manipulation of the argument NewPortMappingDescription results in buffer overflow. The attack needs to be approached within the local network. The exploit has been released to the public and may be used for attacks. This vulnerability only affects products that are no longer supported by the maintainer.
🤖 AI Executive Summary
A buffer overflow vulnerability (CVE-2026-7069) exists in D-Link DIR-825 routers up to firmware version 3.00b32 affecting the miniupnpd UPnP service. The flaw allows local network attackers to trigger a buffer overflow via the NewPortMappingDescription parameter, potentially leading to code execution. With no patches available and the product reaching end-of-life, this poses significant risk to organizations still deploying these legacy devices.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 29, 2026 20:32
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations using legacy D-Link DIR-825 routers face significant risk, particularly in: (1) Banking sector (SAMA-regulated institutions) using these devices in branch networks or as secondary connectivity; (2) Government agencies (NCA oversight) with aging network infrastructure; (3) Healthcare facilities relying on older networking equipment; (4) Small-to-medium enterprises and retail chains across Saudi Arabia using consumer-grade routers for business networks. The local network requirement limits exposure but is critical for organizations with shared network segments or guest networks accessible to untrusted users.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Healthcare and Medical Facilities
Telecommunications
Retail and E-Commerce
Small and Medium Enterprises
Education
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
7.2
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Inventory all D-Link DIR-825 devices across your network infrastructure
2. Isolate affected routers from critical network segments if replacement is not immediately possible
3. Restrict local network access to the UPnP service by disabling UPnP if not required
4. Implement network segmentation to limit lateral movement from compromised routers
Patching Guidance:
1. No official patches are available; device is end-of-life
2. Immediately plan replacement with supported D-Link models or alternative vendors
3. If replacement timeline exceeds 30 days, disable miniupnpd service via SSH/telnet if accessible
4. Apply firewall rules to block UPnP traffic (UDP 1900, TCP 5000) at network perimeter
Compensating Controls:
1. Deploy network-based intrusion detection signatures for UPnP buffer overflow attempts
2. Monitor for unusual process execution on router devices
3. Implement strict access controls limiting who can connect to local network segments
4. Deploy network access control (NAC) to prevent unauthorized device connections
Detection Rules:
1. Monitor for NewPortMappingDescription parameters exceeding 256 bytes in UPnP requests
2. Alert on any UPnP SOAP requests with abnormally long string values
3. Track failed UPnP service restarts or unexpected router reboots
4. Monitor for shell command execution attempts via UPnP interfaces
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. قم بحصر جميع أجهزة D-Link DIR-825 عبر البنية التحتية للشبكة
2. عزل الأجهزة المتأثرة عن القطاعات الحرجة في الشبكة إذا لم يكن الاستبدال ممكناً فوراً
3. تقييد الوصول إلى خدمة UPnP على الشبكة المحلية بتعطيلها إذا لم تكن مطلوبة
4. تطبيق تقسيم الشبكة لتحديد الحركة الجانبية من أجهزة التوجيه المخترقة
إرشادات التصحيح:
1. لا توجد تصحيحات رسمية متاحة؛ الجهاز انتهى دعمه
2. خطط فوراً لاستبدال الأجهزة بنماذج D-Link مدعومة أو بدائل أخرى
3. إذا تجاوزت مدة الاستبدال 30 يوماً، قم بتعطيل خدمة miniupnpd عبر SSH/telnet
4. طبق قواعد جدار الحماية لحظر حركة UPnP (UDP 1900, TCP 5000)
الضوابط البديلة:
1. نشر توقيعات الكشف عن الاختراقات على مستوى الشبكة لمحاولات تجاوز المخزن المؤقت
2. مراقبة تنفيذ العمليات غير العادية على أجهزة التوجيه
3. تطبيق ضوابط وصول صارمة لتحديد من يمكنه الاتصال بقطاعات الشبكة المحلية
4. نشر التحكم في الوصول إلى الشبكة (NAC) لمنع اتصالات الأجهزة غير المصرح بها
قواعد الكشف:
1. مراقبة معاملات NewPortMappingDescription التي تتجاوز 256 بايت في طلبات UPnP
2. تنبيهات على طلبات SOAP في UPnP بقيم نصية غير عادية الطول
3. تتبع إعادة تشغيل خدمة UPnP الفاشلة أو إعادة تشغيل جهاز التوجيه غير المتوقعة
4. مراقبة محاولات تنفيذ أوامر الأصداف عبر واجهات UPnP
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.8.1 - Asset Management and Inventory Control
ECC 2024 A.8.2 - End-of-Life Asset Management
ECC 2024 A.13.1 - Network Security and Segmentation
ECC 2024 A.14.2 - System Hardening and Configuration Management
🔵 SAMA CSF
SAMA CSF ID.AM-1 - Physical and Cyber Assets Inventory
SAMA CSF PR.DS-1 - Data Security Baseline
SAMA CSF PR.IP-1 - Security Policy and Process
SAMA CSF DE.CM-1 - Network Monitoring and Detection
🟡 ISO 27001:2022
ISO 27001:2022 A.5.9 - Access Control
ISO 27001:2022 A.8.1 - Asset Management
ISO 27001:2022 A.8.2 - Configuration Management
ISO 27001:2022 A.8.6 - Management of Technical Vulnerabilities
🟣 PCI DSS v4.0.1
PCI DSS 1.1 - Firewall Configuration Standards
PCI DSS 2.1 - Default Passwords and Security Parameters
PCI DSS 6.2 - Security Patches and Updates
PCI DSS 11.2 - Vulnerability Scanning
🔗 References & Sources 5
🔗
https://tzh00203.notion.site/D-Link-DIR-825-miniupnpd-AddPortMapping-Stack-Overflow-337...
cna@vuldb.com
Exploit
Mitigation
Third Party Advisory
🔗
https://vuldb.com/submit/798647
cna@vuldb.com
Third Party Advisory
VDB Entry
🔗
https://vuldb.com/vuln/359644
cna@vuldb.com
Third Party Advisory
VDB Entry
🔗
https://vuldb.com/vuln/359644/cti
cna@vuldb.com
Permissions Required
VDB Entry
🔗
https://www.dlink.com/
cna@vuldb.com
Product
📦 Affected Products / CPE 1 entries
dlink:dir-825_firmware:3.00b32