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Global data_breach Government HIGH 58m Global malware Software Development CRITICAL 1h Global phishing Multiple Sectors HIGH 1h Global vulnerability Web Applications CRITICAL 2h Global apt Critical Infrastructure CRITICAL 2h Global ransomware Multiple sectors CRITICAL 2h Global supply_chain Software Development, IT Infrastructure, Technology CRITICAL 3h Global vulnerability,data_breach,general Technology, Industrial Control Systems, Telecommunications HIGH 4h Global general Consumer Electronics and Retail MEDIUM 6h Global supply_chain Software Development and Technology HIGH 6h Global data_breach Government HIGH 58m Global malware Software Development CRITICAL 1h Global phishing Multiple Sectors HIGH 1h Global vulnerability Web Applications CRITICAL 2h Global apt Critical Infrastructure CRITICAL 2h Global ransomware Multiple sectors CRITICAL 2h Global supply_chain Software Development, IT Infrastructure, Technology CRITICAL 3h Global vulnerability,data_breach,general Technology, Industrial Control Systems, Telecommunications HIGH 4h Global general Consumer Electronics and Retail MEDIUM 6h Global supply_chain Software Development and Technology HIGH 6h Global data_breach Government HIGH 58m Global malware Software Development CRITICAL 1h Global phishing Multiple Sectors HIGH 1h Global vulnerability Web Applications CRITICAL 2h Global apt Critical Infrastructure CRITICAL 2h Global ransomware Multiple sectors CRITICAL 2h Global supply_chain Software Development, IT Infrastructure, Technology CRITICAL 3h Global vulnerability,data_breach,general Technology, Industrial Control Systems, Telecommunications HIGH 4h Global general Consumer Electronics and Retail MEDIUM 6h Global supply_chain Software Development and Technology HIGH 6h
Vulnerabilities

CVE-2026-2143

High ⚡ Exploit Available
A security vulnerability has been detected in D-Link DIR-823X 250416. This issue affects some unknown processing of the file /goform/set_ddns of the component DDNS Service. The manipulation of the arg
CWE-77 — Weakness Type
Published: Feb 8, 2026  ·  Modified: Feb 28, 2026  ·  Source: NVD
CVSS v3
7.2
🔗 NVD Official
📄 Description (English)

A security vulnerability has been detected in D-Link DIR-823X 250416. This issue affects some unknown processing of the file /goform/set_ddns of the component DDNS Service. The manipulation of the argument ddnsType/ddnsDomainName/ddnsUserName/ddnsPwd leads to os command injection. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used.

🤖 AI Executive Summary

A critical OS command injection vulnerability exists in D-Link DIR-823X firmware (version 250416) affecting the DDNS service component. Remote attackers can execute arbitrary commands through unsanitized parameters in the /goform/set_ddns endpoint. With public exploit availability and widespread router deployment across Saudi networks, immediate patching is essential to prevent unauthorized system compromise.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 9, 2026 06:11
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi telecommunications infrastructure (STC, Mobily, Zain), government networks, and enterprise environments where D-Link DIR-823X routers serve as network perimeter devices. Banking sector (SAMA-regulated institutions) faces elevated risk if routers are used in branch connectivity or VPN termination. Healthcare facilities and critical infrastructure operators using these devices for network access are vulnerable to lateral movement and data exfiltration. The public exploit availability increases attack likelihood across all sectors.
🏢 Affected Saudi Sectors
Telecommunications (STC, Mobily, Zain) Banking and Financial Services (SAMA-regulated) Government and Public Administration Healthcare Energy and Utilities Critical Infrastructure Enterprise Networks
⚖️ Saudi Risk Score (AI)
8.1
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all D-Link DIR-823X devices running firmware version 250416 across your network using asset discovery tools
2. Isolate affected devices from production networks if patching cannot be completed within 24 hours
3. Disable DDNS service functionality if not operationally required
4. Implement network segmentation to restrict access to the /goform/set_ddns endpoint

PATCHING GUIDANCE:
1. Download the latest firmware from D-Link support portal (verify digital signatures)
2. Apply firmware update during maintenance window with rollback plan
3. Verify successful update by checking firmware version in device management interface
4. Test DDNS functionality post-patch if service is required

COMPENSATING CONTROLS (if patch unavailable):
1. Implement WAF rules blocking requests to /goform/set_ddns with special characters or command syntax
2. Restrict administrative access to router management interface via IP whitelisting
3. Monitor router logs for suspicious DDNS configuration attempts
4. Disable remote management access if not required

DETECTION RULES:
1. Monitor HTTP POST requests to /goform/set_ddns containing: pipe (|), semicolon (;), backtick (`), $(), command substitution patterns
2. Alert on DDNS parameter values exceeding normal length thresholds
3. Track failed authentication attempts to router management interface
4. Monitor for unexpected process execution from router web service
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة D-Link DIR-823X التي تعمل بإصدار البرنامج الثابت 250416 عبر شبكتك باستخدام أدوات اكتشاف الأصول
2. عزل الأجهزة المتأثرة عن شبكات الإنتاج إذا لم يتمكن التصحيح خلال 24 ساعة
3. تعطيل وظيفة خدمة DDNS إذا لم تكن مطلوبة تشغيليًا
4. تنفيذ تقسيم الشبكة لتقييد الوصول إلى نقطة النهاية /goform/set_ddns

إرشادات التصحيح:
1. تحميل أحدث برنامج ثابت من بوابة دعم D-Link (التحقق من التوقيعات الرقمية)
2. تطبيق تحديث البرنامج الثابت خلال نافذة الصيانة مع خطة التراجع
3. التحقق من نجاح التحديث بفحص إصدار البرنامج الثابت في واجهة إدارة الجهاز
4. اختبار وظيفة DDNS بعد التصحيح إذا كانت الخدمة مطلوبة

الضوابط البديلة:
1. تنفيذ قواعد WAF لحجب الطلبات إلى /goform/set_ddns التي تحتوي على أحرف خاصة أو بناء جملة الأوامر
2. تقييد الوصول الإداري إلى واجهة إدارة الموجه عبر قائمة بيضاء IP
3. مراقبة سجلات الموجه للمحاولات المريبة لتكوين DDNS
4. تعطيل الوصول الإداري البعيد إذا لم يكن مطلوبًا

قواعد الكشف:
1. مراقبة طلبات HTTP POST إلى /goform/set_ddns التي تحتوي على: الأنابيب (|)، الفاصلة المنقوطة (;)، علامة الخطر (`)
2. التنبيه على قيم معاملات DDNS التي تتجاوز حدود الطول العادية
3. تتبع محاولات المصادقة الفاشلة لواجهة إدارة الموجه
4. مراقبة تنفيذ العمليات غير المتوقعة من خدمة الويب للموجه
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.12.6.1 - Management of technical vulnerabilities ECC 2024 A.14.2.1 - Secure development policy ECC 2024 A.12.2.1 - Monitoring and logging of network access
🔵 SAMA CSF
SAMA CSF ID.RA-1 - Asset Management and Vulnerability Assessment SAMA CSF PR.IP-12 - Security patch management SAMA CSF DE.CM-1 - Detection and monitoring of network anomalies
🟡 ISO 27001:2022
ISO 27001:2022 A.12.6.1 - Management of technical vulnerabilities ISO 27001:2022 A.14.2.1 - Secure development and change management ISO 27001:2022 A.12.2.1 - Monitoring and logging
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Security patch management PCI DSS 11.2 - Vulnerability scanning and assessment
📦 Affected Products / CPE 1 entries
dlink:dir-823x_firmware:250416
📊 CVSS Score
7.2
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredH — High
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityH — High
IntegrityH — High
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score7.2
CWECWE-77
EPSS0.10%
Exploit ✓ Yes
Patch ✓ Yes
Published 2026-02-08
Source Feed nvd
Views 5
🇸🇦 Saudi Risk Score
8.1
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
exploit-available CWE-77
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