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Vulnerabilities

CVE-2026-34256

High
CWE-862 — Weakness Type
Published: Apr 14, 2026  ·  Modified: Apr 20, 2026  ·  Source: NVD
CVSS v3
7.1
🔗 NVD Official
📄 Description (English)

Due to a missing authorization check in SAP ERP and SAP S/4HANA (Private Cloud and On-Premise), an authenticated attacker could execute a particular ABAP report to overwrite any existing eight?character executable ABAP report without authorization. If the overwritten report is subsequently executed, the intended functionality could become unavailable. Successful exploitation impacts availability, with a limited impact on integrity confined to the affected report, while confidentiality remains unaffected.

🤖 AI Executive Summary

CVE-2026-34256 is a high-severity authorization bypass vulnerability in SAP ERP and S/4HANA that allows authenticated attackers to overwrite existing ABAP reports without proper authorization checks. This vulnerability primarily impacts system availability by enabling attackers to disable critical business processes through report manipulation. While no patch is currently available, immediate compensating controls and access restrictions are essential for Saudi organizations relying on SAP systems.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 9, 2026 21:32
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi banking sector (SAMA-regulated institutions), government agencies (NCA oversight), and large enterprises using SAP ERP/S/4HANA. Critical impact areas include: (1) Banking/Financial Services - disruption of payment processing, reconciliation, and regulatory reporting; (2) Government/Public Sector - compromise of administrative processes and citizen services; (3) Energy Sector (ARAMCO, utilities) - potential disruption of operational reports and monitoring systems; (4) Telecommunications (STC, Mobily) - impact on billing and customer management systems. The vulnerability is particularly dangerous as it requires only authenticated access, which is common in large organizations with numerous users.
🏢 Affected Saudi Sectors
Banking and Financial Services Government and Public Administration Energy and Utilities Telecommunications Healthcare Manufacturing Retail and E-commerce
⚖️ Saudi Risk Score (AI)
7.8
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Restrict ABAP report execution permissions to only essential users with documented business justification
2. Implement role-based access control (RBAC) limiting report modification capabilities to authorized developers only
3. Enable and monitor all ABAP report execution logs (transaction SM37, SM39) for unauthorized modifications
4. Conduct immediate audit of all 8-character ABAP reports to identify unauthorized changes

COMPENSATING CONTROLS:
1. Implement SAP Change Request Management (CRM) requiring approval before any report modifications
2. Deploy SAP GRC (Governance, Risk, Compliance) module to enforce segregation of duties
3. Enable SAP audit logging for all ABAP report creation/modification activities
4. Restrict access to transaction SE38 (ABAP Editor) and SE80 (Object Navigator) to development team only
5. Implement version control for all ABAP reports using SAP Transport Management System (TMS)

DETECTION RULES:
1. Monitor for unauthorized executions of transaction SE38, SE80, SE37 (Function Module Editor)
2. Alert on any ABAP report modifications outside scheduled maintenance windows
3. Track failed authorization checks in security audit logs (table USLOG)
4. Monitor for bulk report modifications or unusual report execution patterns
5. Implement SIEM rules to detect multiple failed authorization attempts

PATCHING STRATEGY:
1. Monitor SAP Security Patch Day (second Tuesday of each month) for CVE-2026-34256 fix
2. Establish expedited patching process for SAP systems once patch becomes available
3. Test patches in non-production environment before production deployment
4. Coordinate with SAP support for interim security guidance
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تقييد صلاحيات تنفيذ تقارير ABAP للمستخدمين الأساسيين فقط مع توثيق المبرر التجاري
2. تطبيق التحكم في الوصول القائم على الأدوار (RBAC) لتحديد قدرات تعديل التقارير للمطورين المصرحين فقط
3. تفعيل ومراقبة سجلات تنفيذ تقارير ABAP (المعاملات SM37، SM39) للتعديلات غير المصرح بها
4. إجراء تدقيق فوري لجميع تقارير ABAP ذات 8 أحرف لتحديد التغييرات غير المصرح بها

الضوابط التعويضية:
1. تطبيق إدارة طلبات التغيير (CRM) في SAP تتطلب الموافقة قبل أي تعديلات على التقارير
2. نشر وحدة SAP GRC (الحوكمة والمخاطر والامتثال) لفرض فصل الواجبات
3. تفعيل تسجيل التدقيق في SAP لجميع أنشطة إنشاء/تعديل تقارير ABAP
4. تقييد الوصول إلى المعاملة SE38 (محرر ABAP) و SE80 (مستكشف الكائنات) لفريق التطوير فقط
5. تطبيق التحكم في الإصدارات لجميع تقارير ABAP باستخدام نظام إدارة النقل (TMS)

قواعد الكشف:
1. مراقبة التنفيذ غير المصرح به للمعاملات SE38، SE80، SE37 (محرر وحدة الوظائف)
2. التنبيه على أي تعديلات تقارير ABAP خارج نوافذ الصيانة المجدولة
3. تتبع فحوصات التفويض الفاشلة في سجلات التدقيق الأمني (جدول USLOG)
4. مراقبة تعديلات التقارير الجماعية أو أنماط تنفيذ التقارير غير العادية
5. تطبيق قواعد SIEM للكشف عن محاولات التفويض الفاشلة المتعددة

استراتيجية التصحيح:
1. مراقبة يوم تصحيح أمان SAP (الثلاثاء الثاني من كل شهر) للحصول على إصلاح CVE-2026-34256
2. إنشاء عملية تصحيح معجلة لأنظمة SAP بمجرد توفر التصحيح
3. اختبار التصحيحات في بيئة غير الإنتاج قبل نشر الإنتاج
4. التنسيق مع دعم SAP للحصول على إرشادات أمان مؤقتة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 - 5.1.1: Access Control and Authorization ECC 2024 - 5.1.2: User Access Management ECC 2024 - 5.2.1: Segregation of Duties ECC 2024 - 6.1.1: Audit Logging and Monitoring
🔵 SAMA CSF
SAMA CSF - ID.AC-1: Access Control Policy SAMA CSF - ID.AC-2: Physical and Logical Access Controls SAMA CSF - DE.AE-1: Audit Logging SAMA CSF - DE.CM-1: System Monitoring
🟡 ISO 27001:2022
ISO 27001:2022 - A.5.2: User Access Management ISO 27001:2022 - A.5.3: Access Control ISO 27001:2022 - A.8.2: Information Security Policies ISO 27001:2022 - A.8.3: Organization of Information Security
🟣 PCI DSS v4.0.1
PCI DSS 4.0 - Requirement 2: Apply Secure Configurations PCI DSS 4.0 - Requirement 7: Restrict Access to Data PCI DSS 4.0 - Requirement 10: Log and Monitor Access
📊 CVSS Score
7.1
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityN — None / Network
IntegrityL — Low / Local
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score7.1
CWECWE-862
EPSS0.04%
Exploit No
Patch ✗ No
Published 2026-04-14
Source Feed nvd
Views 4
🇸🇦 Saudi Risk Score
7.8
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-862
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