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Vulnerabilities

CVE-2026-40828

Medium
CWE-89 — Weakness Type
Published: May 27, 2026  ·  Modified: May 30, 2026  ·  Source: NVD
CVSS v3
5.5
🔗 NVD Official
📄 Description (English)

A high privileged remote attacker can exploit an unauthenticated SQL Injection vulnerability in the DeleteSysLogEntry function due to improper neutralization of special elements in a SQL DELETE command allowing for reading the whole database and deleting entries in a non critical table. This can result in a total loss of confidentiality and some loss of integrity.

🤖 AI Executive Summary

CVE-2026-40828 is a medium-severity SQL injection vulnerability in the DeleteSysLogEntry function that allows unauthenticated remote attackers to read entire databases and delete system log entries. While currently without public exploits or patches, the vulnerability poses significant risk to organizations relying on affected systems for audit trail integrity. Immediate compensating controls and vendor engagement are critical until patches become available.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 29, 2026 22:05
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi banking sector (SAMA-regulated institutions), government agencies (NCA oversight), healthcare providers (MOH systems), and energy sector (ARAMCO, SEC). The ability to delete system logs without authentication directly undermines audit trail integrity required by SAMA CSF, NCA ECC 2024, and MOH cybersecurity frameworks. Telecom operators (STC, Mobily, Zain) managing critical infrastructure are particularly vulnerable. The unauthenticated nature and database-wide read access create severe compliance violations for organizations subject to Saudi data protection and financial audit requirements.
🏢 Affected Saudi Sectors
Banking and Financial Services Government and Public Administration Healthcare Energy and Utilities Telecommunications Critical Infrastructure
⚖️ Saudi Risk Score (AI)
7.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all systems running affected products and isolate from internet-facing networks
2. Implement network-level access controls restricting DeleteSysLogEntry function calls to authorized internal networks only
3. Enable comprehensive SQL query logging and monitoring for DELETE operations on system log tables
4. Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in DeleteSysLogEntry parameters
5. Review and restore system logs from secure backups to detect unauthorized deletions

COMPENSATING CONTROLS:
6. Deploy database activity monitoring (DAM) solutions to detect anomalous DELETE queries
7. Implement database-level access controls limiting DeleteSysLogEntry execution to authenticated service accounts only
8. Configure read-only replicas of system log databases for audit trail preservation
9. Enable database encryption at rest and in transit
10. Implement centralized syslog forwarding to immutable external logging systems (SIEM)

DETECTION RULES:
- Alert on any DeleteSysLogEntry function calls from unauthenticated sessions
- Monitor for SQL syntax patterns containing UNION, SELECT, OR 1=1 in function parameters
- Track database connection attempts from non-standard ports or IP ranges
- Flag bulk DELETE operations on system log tables outside maintenance windows

PATCHING:
11. Contact vendor immediately for patch timeline and interim security updates
12. Establish vendor communication protocol for security bulletins
13. Prepare patch testing environment and deployment procedures
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع الأنظمة التي تقوم بتشغيل المنتجات المتأثرة وعزلها عن الشبكات المتصلة بالإنترنت
2. تنفيذ عناصر تحكم الوصول على مستوى الشبكة لتقييد استدعاءات دالة DeleteSysLogEntry للشبكات الداخلية المصرح بها فقط
3. تفعيل تسجيل المراقبة الشاملة لاستعلامات SQL وعمليات DELETE على جداول السجلات النظامية
4. تنفيذ قواعد جدار حماية تطبيقات الويب (WAF) للكشف عن أنماط حقن SQL وحجبها في معاملات DeleteSysLogEntry
5. مراجعة واستعادة السجلات النظامية من النسخ الاحتياطية الآمنة للكشف عن الحذف غير المصرح به

التدابير التعويضية:
6. نشر حلول مراقبة نشاط قاعدة البيانات (DAM) للكشف عن استعلامات DELETE الشاذة
7. تنفيذ عناصر تحكم الوصول على مستوى قاعدة البيانات لتقييد تنفيذ DeleteSysLogEntry على حسابات الخدمة المصرح بها فقط
8. تكوين نسخ مكررة للقراءة فقط من قواعد بيانات السجلات النظامية للحفاظ على مسارات التدقيق
9. تفعيل تشفير قاعدة البيانات أثناء الراحة والنقل
10. تنفيذ إعادة توجيه السجلات المركزية إلى أنظمة تسجيل خارجية غير قابلة للتغيير (SIEM)

قواعد الكشف:
- تنبيه عند أي استدعاءات لدالة DeleteSysLogEntry من جلسات غير مصرح بها
- مراقبة أنماط بناء جملة SQL التي تحتوي على UNION أو SELECT أو OR 1=1 في معاملات الدالة
- تتبع محاولات الاتصال بقاعدة البيانات من المنافذ أو نطاقات IP غير القياسية
- وضع علامة على عمليات DELETE الضخمة على جداول السجلات النظامية خارج نوافذ الصيانة

التصحيح:
11. الاتصال بالبائع فوراً للحصول على جدول زمني للتصحيح والتحديثات الأمنية المؤقتة
12. إنشاء بروتوكول اتصال البائع للنشرات الأمنية
13. تحضير بيئة اختبار التصحيح وإجراءات النشر
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Access Control Policy (unauthenticated access violation) ECC 2024 A.8.2.1 - User Registration and Access Rights (authentication bypass) ECC 2024 A.10.1.1 - Information Security Event Logging (log deletion capability) ECC 2024 A.12.4.1 - Event Logging (audit trail integrity compromise)
🔵 SAMA CSF
SAMA CSF ID.AM-2 - Asset Management (unpatched systems) SAMA CSF PR.AC-1 - Access Control (unauthenticated access) SAMA CSF PR.PT-1 - Protection Processes (SQL injection vulnerability) SAMA CSF DE.AE-1 - Anomalies and Events (log deletion detection) SAMA CSF RC.IM-2 - Improvements (audit trail restoration)
🟡 ISO 27001:2022
ISO 27001:2022 A.5.15 - Access Control (authentication and authorization) ISO 27001:2022 A.8.1 - Audit Logging (log integrity and availability) ISO 27001:2022 A.8.2 - Information Security Event Logging (completeness) ISO 27001:2022 A.8.3 - Protection of Log Information (immutability) ISO 27001:2022 A.14.2 - Secure Development (input validation)
🟣 PCI DSS v4.0.1
PCI DSS 6.5.1 - Injection Flaws (SQL injection prevention) PCI DSS 10.2 - Logging User Access (audit trail integrity) PCI DSS 10.3 - Protection of Audit Trail (log deletion prevention) PCI DSS 10.7 - Retention of Audit Trail History (log preservation)
📊 CVSS Score
5.5
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredH — High
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityH — High
IntegrityL — Low / Local
AvailabilityN — None / Network
📋 Quick Facts
Severity Medium
CVSS Score5.5
CWECWE-89
EPSS0.03%
Exploit No
Patch ✗ No
Published 2026-05-27
Source Feed nvd
🇸🇦 Saudi Risk Score
7.2
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-89
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