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Vulnerabilities

CVE-2025-9464

High
A security issue exists within ArmorStart® LT that can result in a denial-of-service condition. This vulnerability is triggered during fuzzing of multiple CIP classes, which causes the CIP port to bec
CWE-400 — Weakness Type
Published: Jan 20, 2026  ·  Modified: Feb 28, 2026  ·  Source: NVD
CVSS v3
7.5
🔗 NVD Official
📄 Description (English)

A security issue exists within ArmorStart® LT that can result in a denial-of-service condition. This vulnerability is triggered during fuzzing of multiple CIP classes, which causes the CIP port to become unresponsive.

🤖 AI Executive Summary

CVE-2025-9464 is a denial-of-service vulnerability in Rockwell Automation's ArmorStart® LT firmware that renders the CIP (Common Industrial Protocol) port unresponsive when triggered through fuzzing of multiple CIP classes. With a CVSS score of 7.5 and no public exploit available, this poses a significant risk to industrial control systems in Saudi Arabia's critical infrastructure. Immediate patching is recommended for all affected firmware versions to prevent operational disruptions.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 3, 2026 02:00
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability directly impacts Saudi Arabia's critical infrastructure sectors, particularly: (1) Energy sector — ARAMCO and downstream petroleum facilities relying on Rockwell Automation controllers for SCADA/ICS operations; (2) Water and Wastewater — SWCC and municipal utilities using ArmorStart® LT for process control; (3) Manufacturing — industrial facilities across Jubail and Yanbu industrial cities; (4) Telecommunications — STC and other telecom operators using industrial automation for network infrastructure. A successful DoS attack could cause extended operational downtime, production losses, and safety hazards in critical processes.
🏢 Affected Saudi Sectors
Energy (Oil & Gas) Water and Wastewater Manufacturing Telecommunications Utilities Chemical Processing Petrochemicals
⚖️ Saudi Risk Score (AI)
7.8
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Identify all ArmorStart® LT devices in your environment using asset discovery tools and verify firmware versions against affected versions
2. Implement network segmentation to isolate CIP traffic and restrict access to CIP ports (default port 2222) to authorized systems only
3. Deploy rate limiting and input validation on CIP protocol handlers to mitigate fuzzing attacks
4. Enable comprehensive logging and monitoring of CIP port activity for anomalous connection patterns

Patching Guidance:
1. Contact Rockwell Automation immediately to obtain the latest patched firmware version
2. Test patches in a controlled lab environment before production deployment
3. Schedule maintenance windows for firmware updates on non-critical systems first
4. Maintain rollback procedures and backups before applying patches

Compensating Controls (if patching delayed):
1. Deploy intrusion detection/prevention systems (IDS/IPS) configured to detect CIP fuzzing patterns
2. Implement firewall rules to restrict CIP protocol access to trusted sources only
3. Monitor CPU and memory utilization on affected devices for signs of DoS attacks
4. Configure automated alerts for CIP port unavailability

Detection Rules:
1. Monitor for multiple rapid CIP class requests from single source within short timeframe
2. Alert on CIP port becoming unresponsive or connection timeouts
3. Track unusual packet patterns or malformed CIP protocol messages
4. Monitor device restart events following CIP port failures
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة ArmorStart® LT في بيئتك باستخدام أدوات اكتشاف الأصول والتحقق من إصدارات البرنامج مقابل الإصدارات المتأثرة
2. تنفيذ تقسيم الشبكة لعزل حركة CIP وتقييد الوصول إلى منافذ CIP (المنفذ الافتراضي 2222) للأنظمة المصرح لها فقط
3. نشر تحديد معدل التدفق والتحقق من صحة المدخلات على معالجات بروتوكول CIP للتخفيف من هجمات الضعف
4. تفعيل السجلات الشاملة ومراقبة نشاط منفذ CIP للكشف عن أنماط الاتصال الشاذة

إرشادات التصحيح:
1. الاتصال بـ Rockwell Automation فوراً للحصول على أحدث إصدار برنامج مصحح
2. اختبار التصحيحات في بيئة معملية محكومة قبل النشر في الإنتاج
3. جدولة نوافذ الصيانة لتحديثات البرنامج على الأنظمة غير الحرجة أولاً
4. الحفاظ على إجراءات الاسترجاع والنسخ الاحتياطية قبل تطبيق التصحيحات

الضوابط البديلة (إذا تأخر التصحيح):
1. نشر أنظمة كشف/منع الاختراق (IDS/IPS) المكونة للكشف عن أنماط ضعف CIP
2. تنفيذ قواعد جدار الحماية لتقييد وصول بروتوكول CIP للمصادر الموثوقة فقط
3. مراقبة استخدام وحدة المعالجة المركزية والذاكرة على الأجهزة المتأثرة للكشف عن هجمات حرمان الخدمة
4. تكوين التنبيهات الآلية لعدم توفر منفذ CIP

قواعد الكشف:
1. مراقبة طلبات فئة CIP المتعددة السريعة من مصدر واحد في إطار زمني قصير
2. التنبيه عند عدم استجابة منفذ CIP أو انقطاع الاتصال
3. تتبع أنماط الحزم غير العادية أو رسائل بروتوكول CIP المشوهة
4. مراقبة أحداث إعادة تشغيل الجهاز بعد فشل منفذ CIP
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.12.6.1 — Management of technical vulnerabilities in industrial control systems ECC 2024 A.12.2.1 — Change management for critical infrastructure systems ECC 2024 A.8.2.3 — User access management for ICS/SCADA systems ECC 2024 A.12.3.1 — Logging and monitoring of critical system events
🔵 SAMA CSF
SAMA CSF ID.RA-1 — Asset management and vulnerability identification SAMA CSF PR.IP-12 — Security patch management and configuration management SAMA CSF DE.CM-1 — Detection and analysis of anomalous activity SAMA CSF RS.MI-2 — Incident response and mitigation procedures
🟡 ISO 27001:2022
ISO 27001:2022 A.12.3.1 — Change management procedures ISO 27001:2022 A.12.6.1 — Management of technical vulnerabilities ISO 27001:2022 A.8.1.3 — Segregation of duties in access control ISO 27001:2022 A.12.4.1 — Event logging and monitoring
📦 Affected Products / CPE 1 entries
rockwellautomation:armorstart_lt_firmware
📊 CVSS Score
7.5
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredN — None / Network
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityN — None / Network
IntegrityN — None / Network
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score7.5
CWECWE-400
EPSS0.03%
Exploit No
Patch ✓ Yes
Published 2026-01-20
Source Feed nvd
Views 5
🇸🇦 Saudi Risk Score
7.8
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-400
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