📄 Description (English)
Treck TCP/IP stack Out-of-Bounds Read Vulnerability — The Treck TCP/IP stack contains an IPv6 out-of-bounds read vulnerability.
🤖 AI Executive Summary
CVE-2020-11899 is a critical out-of-bounds read vulnerability in the Treck TCP/IP stack's IPv6 implementation, part of the 'Ripple20' vulnerability set. With a CVSS score of 9.0 and a known public exploit, attackers can remotely trigger memory disclosure or system crashes by sending malformed IPv6 packets. The vulnerability affects a wide range of embedded devices including industrial control systems, medical devices, printers, and IoT equipment that use the Treck TCP/IP stack. Given the pervasive use of Treck in critical infrastructure globally, this poses an immediate and severe risk to operational technology environments.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 18, 2026 10:37
🇸🇦 Saudi Arabia Impact Assessment
Saudi Arabia faces elevated risk due to the widespread deployment of Treck-based embedded devices across critical sectors: (1) Energy/ARAMCO & NEOM: Industrial control systems and SCADA environments using Treck-embedded PLCs and RTUs are highly exposed, potentially enabling attackers to disrupt oil and gas operations; (2) Healthcare: Medical devices in Saudi hospitals (infusion pumps, patient monitors) using Treck are vulnerable to remote exploitation, risking patient safety; (3) Government/NCA: Smart building systems, printers, and network appliances in government facilities may be affected; (4) Telecom/STC: Network infrastructure equipment using Treck-based firmware could be targeted; (5) Banking/SAMA: ATMs, point-of-sale terminals, and embedded financial devices may incorporate vulnerable Treck stacks. The Saudi Vision 2030 digitization push has significantly expanded IoT attack surfaces across all these sectors.
🏢 Affected Saudi Sectors
Energy
Oil and Gas
Healthcare
Government
Manufacturing
Telecom
Banking
Smart Cities
Transportation
Water Utilities
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Inventory all devices using Treck TCP/IP stack across your environment — contact vendors for confirmation
2. Disable IPv6 on all Treck-based devices where IPv6 is not operationally required
3. Isolate vulnerable OT/IoT devices behind network segmentation and firewalls immediately
PATCHING GUIDANCE:
4. Apply Treck TCP/IP stack version 6.0.1.67 or later — coordinate with device manufacturers for firmware updates
5. Contact all embedded device vendors (printers, medical devices, ICS components) for vendor-specific patches
6. Prioritize patching internet-facing and OT-network devices first
COMPENSATING CONTROLS:
7. Deploy deep packet inspection (DPI) to detect and block malformed IPv6 packets at network perimeter
8. Implement strict network ACLs to restrict IPv6 traffic to only trusted sources
9. Enable network monitoring for anomalous IPv6 traffic patterns
10. Apply virtual patching via IPS/IDS signatures for CVE-2020-11899
DETECTION RULES:
11. Monitor for malformed IPv6 extension headers and oversized IPv6 packets
12. Alert on unexpected device reboots or crashes in OT environments
13. Deploy Snort/Suricata rules specific to Ripple20 vulnerability signatures
14. Enable logging on all network segments containing embedded/IoT devices
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. جرد جميع الأجهزة التي تستخدم مكتبة Treck TCP/IP في بيئتك — تواصل مع الموردين للتأكيد
2. تعطيل IPv6 على جميع الأجهزة المبنية على Treck حيث لا يكون IPv6 ضرورياً تشغيلياً
3. عزل الأجهزة الضعيفة OT/IoT خلف تجزئة الشبكة وجدران الحماية فوراً
إرشادات التصحيح:
4. تطبيق إصدار Treck TCP/IP stack 6.0.1.67 أو أحدث — التنسيق مع مصنعي الأجهزة لتحديثات البرامج الثابتة
5. التواصل مع جميع موردي الأجهزة المدمجة (الطابعات، الأجهزة الطبية، مكونات ICS) للحصول على تصحيحات خاصة بالموردين
6. إعطاء الأولوية لتصحيح الأجهزة المواجهة للإنترنت وأجهزة شبكة OT أولاً
ضوابط التعويض:
7. نشر فحص الحزم العميق (DPI) للكشف عن حزم IPv6 المشوهة وحجبها عند محيط الشبكة
8. تطبيق قوائم ACL صارمة لتقييد حركة مرور IPv6 على المصادر الموثوقة فقط
9. تمكين مراقبة الشبكة لأنماط حركة مرور IPv6 الشاذة
10. تطبيق التصحيح الافتراضي عبر توقيعات IPS/IDS لـ CVE-2020-11899
قواعد الكشف:
11. مراقبة رؤوس امتداد IPv6 المشوهة وحزم IPv6 كبيرة الحجم
12. التنبيه على إعادة تشغيل الأجهزة أو الأعطال غير المتوقعة في بيئات OT
13. نشر قواعد Snort/Suricata الخاصة بتوقيعات ثغرات Ripple20
14. تمكين التسجيل على جميع شرائح الشبكة التي تحتوي على أجهزة مدمجة/IoT
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC-1-4-2: Asset Management — embedded device inventory
ECC-2-3-1: Network Security — network segmentation for OT/IoT
ECC-2-3-3: Vulnerability Management — patch management for embedded systems
ECC-2-5-1: Cybersecurity Event Management — detection and monitoring
ECC-3-3-1: Industrial Control Systems Security
🔵 SAMA CSF
Protect — PR.AC: Access Control for network segments
Protect — PR.IP: Information Protection — patch management
Detect — DE.CM: Security Continuous Monitoring for anomalous traffic
Respond — RS.MI: Mitigation of vulnerability impact
Protect — PR.DS: Data Security for memory protection
🟡 ISO 27001:2022
A.8.8: Management of technical vulnerabilities
A.8.20: Networks security — IPv6 traffic controls
A.8.22: Segregation of networks — OT/IoT isolation
A.8.16: Monitoring activities — anomalous packet detection
A.5.30: ICT readiness for business continuity
🟣 PCI DSS v4.0
Requirement 6.3: Security vulnerabilities are identified and addressed
Requirement 1.3: Network access controls
Requirement 11.3: External and internal vulnerability scanning
Requirement 12.3: Risk assessment for embedded payment terminals
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Treck TCP/IP stack:IPv6