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Vulnerabilities

CVE-2026-5024

High ⚡ Exploit Available
A vulnerability was found in D-Link DIR-513 1.10. This issue affects the function formSetEmail of the file /goform/formSetEmail. Performing a manipulation of the argument curTime results in stack-base
CWE-119 — Weakness Type
Published: Mar 29, 2026  ·  Modified: Apr 5, 2026  ·  Source: NVD
CVSS v3
8.8
🔗 NVD Official
📄 Description (English)

A vulnerability was found in D-Link DIR-513 1.10. This issue affects the function formSetEmail of the file /goform/formSetEmail. Performing a manipulation of the argument curTime results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been made public and could be used. This vulnerability only affects products that are no longer supported by the maintainer.

🤖 AI Executive Summary

A critical stack-based buffer overflow vulnerability exists in D-Link DIR-513 firmware version 1.10 affecting the email configuration function. The vulnerability allows remote attackers to execute arbitrary code by manipulating the curTime parameter. With a CVSS score of 8.8 and publicly available exploits, this poses an immediate threat to organizations using this unsupported device.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 23, 2026 14:00
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi organizations in telecommunications (STC, Mobily), government agencies, and small-to-medium enterprises using D-Link DIR-513 routers for network access. The unsupported status of the device makes it particularly dangerous for critical infrastructure, ARAMCO facilities, and SAMA-regulated financial institutions that may have legacy network equipment. Remote code execution capability could lead to network compromise, data exfiltration, and lateral movement within organizational networks.
🏢 Affected Saudi Sectors
Telecommunications (STC, Mobily, Zain) Government Agencies Banking and Financial Services Energy Sector (ARAMCO) Healthcare Small and Medium Enterprises Educational Institutions
⚖️ Saudi Risk Score (AI)
8.9
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all D-Link DIR-513 devices running firmware 1.10 in your network using asset inventory tools
2. Isolate affected devices from critical network segments if replacement is not immediately possible
3. Implement network segmentation to restrict access to the device's web interface (port 80/443)
4. Enable firewall rules to block external access to the device

PATCHING GUIDANCE:
1. Since no patch is available from D-Link, device replacement is the primary remediation
2. Contact D-Link support to confirm end-of-life status and explore upgrade options
3. If replacement timeline extends beyond 30 days, implement compensating controls

COMPENSATING CONTROLS:
1. Deploy Web Application Firewall (WAF) rules to block requests to /goform/formSetEmail endpoint
2. Implement strict input validation at network perimeter for curTime parameter
3. Monitor for exploitation attempts using IDS/IPS signatures
4. Restrict administrative access to device management interfaces via VPN only
5. Implement network access control (NAC) to prevent unauthorized device connections

DETECTION RULES:
1. Monitor HTTP POST requests to /goform/formSetEmail with oversized curTime parameters
2. Alert on any stack overflow patterns in device logs
3. Track failed authentication attempts to device management interface
4. Monitor for unusual process execution originating from the device IP address
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة D-Link DIR-513 التي تعمل بالإصدار 1.10 في شبكتك باستخدام أدوات جرد الأصول
2. عزل الأجهزة المتأثرة عن القطاعات الحرجة في الشبكة إذا لم يكن الاستبدال ممكناً فوراً
3. تطبيق قواعد جدار الحماية لتقييد الوصول إلى واجهة الويب للجهاز
4. حظر الوصول الخارجي إلى الجهاز

إرشادات التصحيح:
1. بما أنه لا يوجد تصحيح متاح من D-Link، فإن استبدال الجهاز هو الحل الأساسي
2. التواصل مع دعم D-Link لتأكيد حالة نهاية الحياة واستكشاف خيارات الترقية
3. إذا تجاوزت مدة الاستبدال 30 يوماً، قم بتطبيق ضوابط تعويضية

الضوابط التعويضية:
1. نشر قواعد جدار تطبيقات الويب لحظر الطلبات إلى نقطة النهاية /goform/formSetEmail
2. تطبيق التحقق الصارم من المدخلات على محيط الشبكة لمعامل curTime
3. مراقبة محاولات الاستغلال باستخدام توقيعات IDS/IPS
4. تقييد الوصول الإداري إلى واجهات إدارة الجهاز عبر VPN فقط
5. تطبيق التحكم في الوصول إلى الشبكة (NAC) لمنع اتصالات الأجهزة غير المصرح بها

قواعد الكشف:
1. مراقبة طلبات HTTP POST إلى /goform/formSetEmail بمعاملات curTime كبيرة الحجم
2. التنبيه على أي أنماط تجاوز المخزن المؤقت في سجلات الجهاز
3. تتبع محاولات المصادقة الفاشلة لواجهة إدارة الجهاز
4. مراقبة تنفيذ العمليات غير العادية من عنوان IP للجهاز
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.8.1 - Asset Management and Inventory Control ECC 2024 A.8.2 - Information and Other Assets ECC 2024 A.12.6 - Management of Technical Vulnerabilities ECC 2024 A.14.2 - System Development and Change Management
🔵 SAMA CSF
SAMA CSF ID.AM-1 - Physical Devices and Software Assets SAMA CSF PR.DS-6 - Integrity Checking Mechanisms SAMA CSF DE.CM-1 - The network is monitored to detect potential cybersecurity events SAMA CSF RS.MI-1 - Incidents are contained
🟡 ISO 27001:2022
ISO 27001:2022 A.5.19 - Secure development policy ISO 27001:2022 A.8.1 - Asset management ISO 27001:2022 A.8.2 - Information classification ISO 27001:2022 A.12.6 - Management of technical vulnerabilities
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Ensure that all system components and software are protected from known vulnerabilities
📦 Affected Products / CPE 1 entries
dlink:dir-513_firmware:1.10
📊 CVSS Score
8.8
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack VectorN — None / Network
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 Score8.8
CWECWE-119
EPSS0.03%
Exploit ✓ Yes
Patch ✗ No
Published 2026-03-29
Source Feed nvd
Views 4
🇸🇦 Saudi Risk Score
8.9
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
exploit-available CWE-119
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