📄 Description (English)
A vulnerability has been identified in CPCI85 Central Processing/Communication (All versions < V26.10), SICORE Base system (All versions < V26.10.0). The affected application contains an out-of-bounds write vulnerability while parsing specially crafted XML inputs. This could allow an unauthenticated attacker to exploit this issue by sending a malicious XML request, which may cause the service to crash, resulting in a denial-of-service condition.
🤖 AI Executive Summary
CVE-2026-27664 is a high-severity out-of-bounds write vulnerability in CPCI85 and SICORE Base systems affecting all versions below V26.10. An unauthenticated attacker can exploit this via malicious XML inputs to cause denial-of-service by crashing the affected service. No patch is currently available, requiring immediate compensating controls and monitoring.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: May 3, 2026 17:29
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi critical infrastructure sectors: Energy (ARAMCO operations using CPCI85 for industrial control), Government (NCA systems potentially using SICORE Base), Banking (SAMA-regulated institutions with operational technology), and Telecommunications (STC infrastructure). The denial-of-service impact could disrupt essential services. Organizations using these systems for SCADA/ICS environments face operational continuity risks.
🏢 Affected Saudi Sectors
Energy (ARAMCO, oil & gas operations)
Government (NCA, critical infrastructure)
Banking (SAMA-regulated institutions)
Telecommunications (STC, mobile operators)
Healthcare (hospital operational systems)
Water & Utilities
Transportation
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
8.2
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Identify all systems running CPCI85 (versions < V26.10) and SICORE Base (versions < V26.10.0) in your environment
2. Implement network segmentation to restrict XML input sources to trusted systems only
3. Deploy Web Application Firewall (WAF) rules to block malformed XML payloads and validate XML structure before processing
4. Enable detailed logging for all XML parsing errors and service crashes
Compensating Controls (until patch available):
5. Implement input validation: reject XML requests exceeding expected size limits and containing suspicious encoding
6. Deploy rate limiting on XML processing endpoints to mitigate DoS attempts
7. Configure service auto-restart mechanisms with monitoring alerts
8. Isolate affected systems on separate network segments with restricted access
Detection Rules:
9. Monitor for: XML parsing errors in application logs, unexpected service restarts, memory access violations
10. Alert on: Multiple failed XML parsing attempts from same source, abnormal XML payload sizes
11. Establish baseline for normal XML request patterns and alert on deviations
Patching Strategy:
12. Subscribe to vendor security advisories for V26.10 release timeline
13. Prepare isolated test environment for patch validation before production deployment
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع الأنظمة التي تعمل بـ CPCI85 (إصدارات < V26.10) و SICORE Base (إصدارات < V26.10.0)
2. تطبيق تقسيم الشبكة لتقييد مصادر مدخلات XML للأنظمة الموثوقة فقط
3. نشر قواعد جدار حماية تطبيقات الويب لحجب حمولات XML المشوهة والتحقق من صحة البنية
4. تفعيل السجلات التفصيلية لجميع أخطاء تحليل XML وأعطال الخدمة
الضوابط التعويضية (حتى توفر التصحيح):
5. تطبيق التحقق من المدخلات: رفض طلبات XML التي تتجاوز حدود الحجم المتوقعة
6. نشر تحديد معدل على نقاط نهاية معالجة XML للتخفيف من محاولات رفض الخدمة
7. تكوين آليات إعادة تشغيل الخدمة التلقائية مع تنبيهات المراقبة
8. عزل الأنظمة المتأثرة على قطاعات شبكة منفصلة مع وصول مقيد
قواعد الكشف:
9. مراقبة: أخطاء تحليل XML في سجلات التطبيق، إعادة تشغيل الخدمة غير المتوقعة
10. التنبيه على: محاولات تحليل XML المتعددة الفاشلة من نفس المصدر
11. إنشاء خط أساس لأنماط طلبات XML العادية والتنبيه على الانحرافات
استراتيجية التصحيح:
12. الاشتراك في تنبيهات أمان البائع لجدول إصدار V26.10
13. تحضير بيئة اختبار معزولة للتحقق من التصحيح قبل النشر في الإنتاج
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.12.6.1 - Management of technical vulnerabilities
A.12.2.1 - Change management procedures
A.14.2.1 - Secure development policy
A.16.1.5 - Response to information security incidents
🔵 SAMA CSF
ID.RA-1 - Asset management and criticality assessment
PR.IP-12 - Security awareness and training
DE.CM-1 - Detection and analysis of anomalies
RS.RP-1 - Response planning and procedures
🟡 ISO 27001:2022
A.12.2.1 - Change management
A.12.6.1 - Management of technical vulnerabilities
A.14.2.1 - Secure development policy
A.16.1.1 - Responsibilities and procedures
🟣 PCI DSS v4.0.1
6.2 - Security patches and updates
6.5.1 - Injection flaws
11.2 - Vulnerability scanning
🔗 References & Sources 1