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Vulnerabilities

CVE-2026-25654

High
CWE-639 — Weakness Type
Published: Apr 14, 2026  ·  Modified: Apr 21, 2026  ·  Source: NVD
CVSS v3
8.8
🔗 NVD Official
📄 Description (English)

A vulnerability has been identified in SINEC NMS (All versions < V4.0 SP3). Affected products do not properly validate user authorization when processing password reset requests. This could allow an authenticated remote attacker to bypass authorization checks, leading to the ability to reset the password of any arbitrary user account.

🤖 AI Executive Summary

CVE-2026-25654 is a critical authorization bypass vulnerability in SINEC NMS affecting all versions before V4.0 SP3. An authenticated attacker can reset arbitrary user passwords by bypassing authorization checks, potentially leading to complete account takeover and system compromise. This vulnerability poses significant risk to industrial control systems and critical infrastructure operators in Saudi Arabia, particularly in energy and utilities sectors.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 22, 2026 20:51
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability directly impacts Saudi critical infrastructure operators, particularly: (1) ARAMCO and energy sector facilities using SINEC NMS for industrial control systems; (2) Saudi Water and Electricity Company (SEC) and regional utilities managing grid operations; (3) Government entities operating critical infrastructure; (4) Petrochemical and manufacturing facilities. The authorization bypass enables lateral movement within industrial networks, potential disruption of operational technology (OT) systems, and compromise of sensitive industrial data. Given Saudi Arabia's Vision 2030 digital transformation initiatives and increased OT connectivity, this poses elevated risk to national infrastructure resilience.
🏢 Affected Saudi Sectors
Energy and Utilities (ARAMCO, SEC) Critical Infrastructure Petrochemicals and Manufacturing Government and Defense Water Management Industrial Control Systems Operators
⚖️ Saudi Risk Score (AI)
8.5
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all SINEC NMS deployments in your environment and document current versions
2. Restrict network access to SINEC NMS administrative interfaces using firewall rules and VPN requirements
3. Implement multi-factor authentication (MFA) for all SINEC NMS user accounts
4. Enable comprehensive audit logging for all password reset requests and user authentication events
5. Monitor for suspicious password reset activities, particularly for privileged accounts

PATCHING GUIDANCE:
1. Upgrade to SINEC NMS V4.0 SP3 or later immediately when available
2. Contact Siemens support for patch availability timeline and interim security updates
3. Prioritize patching for systems managing critical infrastructure

COMPENSATING CONTROLS (until patch available):
1. Implement role-based access control (RBAC) with principle of least privilege
2. Disable password reset functionality for privileged accounts; use manual administrative processes instead
3. Implement IP whitelisting for administrative access
4. Deploy intrusion detection systems (IDS) to monitor for unauthorized password reset attempts
5. Conduct regular access reviews and remove unnecessary user accounts
6. Implement network segmentation isolating SINEC NMS from untrusted networks

DETECTION RULES:
1. Alert on multiple failed authentication attempts followed by successful password reset
2. Monitor for password reset requests originating from non-administrative IP ranges
3. Flag password resets for high-privilege accounts outside normal business hours
4. Detect rapid successive password reset requests for multiple user accounts
5. Log and alert on any API calls to password reset endpoints with invalid authorization tokens
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. حدد جميع نشرات SINEC NMS في بيئتك وتوثيق الإصدارات الحالية
2. قيد الوصول إلى واجهات إدارة SINEC NMS باستخدام قواعد جدار الحماية ومتطلبات VPN
3. طبق المصادقة متعددة العوامل (MFA) لجميع حسابات مستخدمي SINEC NMS
4. فعّل تسجيل التدقيق الشامل لجميع طلبات إعادة تعيين كلمات المرور وأحداث المصادقة
5. راقب الأنشطة المريبة لإعادة تعيين كلمات المرور، خاصة للحسابات المميزة

إرشادات التصحيح:
1. قم بالترقية إلى SINEC NMS V4.0 SP3 أو إصدار أحدث فوراً عند توفره
2. اتصل بدعم Siemens للحصول على جدول توفر التصحيح والتحديثات الأمنية المؤقتة
3. أولوية التصحيح للأنظمة التي تدير البنية التحتية الحرجة

الضوابط البديلة (حتى توفر التصحيح):
1. طبق التحكم في الوصول القائم على الأدوار (RBAC) مع مبدأ أقل امتياز
2. عطّل وظيفة إعادة تعيين كلمات المرور للحسابات المميزة؛ استخدم العمليات الإدارية اليدوية بدلاً من ذلك
3. طبق قائمة بيضاء للعناوين IP للوصول الإداري
4. نشر أنظمة كشف الاختراق (IDS) لمراقبة محاولات إعادة تعيين كلمات المرور غير المصرح بها
5. أجرِ مراجعات وصول منتظمة وأزل الحسابات غير الضرورية
6. طبق تقسيم الشبكة لعزل SINEC NMS عن الشبكات غير الموثوقة

قواعد الكشف:
1. تنبيه عند محاولات مصادقة متعددة فاشلة متبوعة بإعادة تعيين كلمة مرور ناجحة
2. راقب طلبات إعادة تعيين كلمات المرور من نطاقات IP غير إدارية
3. علّم إعادة تعيين كلمات المرور للحسابات عالية الامتياز خارج ساعات العمل العادية
4. كشف طلبات إعادة تعيين كلمات المرور المتتالية السريعة لحسابات مستخدمين متعددة
5. سجّل وتنبيه على أي استدعاءات API لنقاط نهاية إعادة تعيين كلمات المرور برموز تفويض غير صحيحة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.9.2.1 - User registration and access rights management ECC 2024 A.9.2.5 - Access rights review ECC 2024 A.9.4.3 - Password management ECC 2024 A.9.4.4 - Secure authentication mechanisms ECC 2024 A.14.2.1 - Information security requirements in supplier relationships
🔵 SAMA CSF
SAMA CSF ID.AM-1 - Asset Management SAMA CSF PR.AC-1 - Access Control Policy SAMA CSF PR.AC-4 - Access Rights and Privileges SAMA CSF DE.CM-1 - Detection and Analysis SAMA CSF RS.MI-1 - Incident Response Mitigation
🟡 ISO 27001:2022
ISO 27001:2022 A.5.15 - Access Control ISO 27001:2022 A.5.16 - Authentication ISO 27001:2022 A.5.18 - Management of privileged access rights ISO 27001:2022 A.8.3 - Logging ISO 27001:2022 A.8.15 - Monitoring
🟣 PCI DSS v4.0.1
PCI DSS 2.1 - Change default passwords PCI DSS 7.1 - Limit access to system components PCI DSS 8.1 - Assign unique ID to each person PCI DSS 8.2 - Ensure proper user authentication PCI DSS 10.2 - Implement automated audit trails
📊 CVSS Score
8.8
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityH — High
IntegrityH — High
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score8.8
CWECWE-639
EPSS0.05%
Exploit No
Patch ✗ No
Published 2026-04-14
Source Feed nvd
Views 4
🇸🇦 Saudi Risk Score
8.5
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
CWE-639
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