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Vulnerabilities

CVE-2025-13763

Medium
Published: Apr 23, 2026  ·  Modified: Apr 23, 2026  ·  Source: NVD
CVSS v3
5.7
🔗 NVD Official
📄 Description (English)

Multiple uses of uninitialized variables were found in libopensc that may lead to information disclosure or application crash. An attack requires a crafted USB device or smart card that would present the system with specially crafted responses to the APDUs

🤖 AI Executive Summary

CVE-2025-13763 is a medium-severity vulnerability in libopensc involving uninitialized variables that could lead to information disclosure or application crashes when processing specially crafted smart card or USB device responses. The vulnerability requires physical access to insert a malicious smart card or USB device, limiting immediate widespread exploitation risk. However, organizations relying on smart card authentication for secure access should prioritize assessment and monitoring.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 24, 2026 21:17
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations most at risk include: (1) Banking sector (SAMA-regulated banks) using smart cards for employee authentication and transaction authorization; (2) Government agencies (NCA, GOSI, MOI) relying on national ID smart cards and PKI infrastructure; (3) Healthcare institutions using smart card-based access control; (4) Energy sector (ARAMCO, SEC) with smart card authentication for critical systems; (5) Telecom operators (STC, Mobily, Zain) managing PKI and smart card systems. The vulnerability could expose sensitive authentication credentials or cause denial of service in systems dependent on smart card readers.
🏢 Affected Saudi Sectors
Banking and Financial Services Government and Public Administration Healthcare Energy and Utilities Telecommunications Defense and Security
⚖️ Saudi Risk Score (AI)
5.8
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Inventory all systems using libopensc library, particularly those with smart card readers or USB token support
2. Disable smart card authentication temporarily if alternative authentication methods are available
3. Restrict physical access to smart card readers and USB ports on critical systems
4. Monitor system logs for unexpected crashes or errors in smart card processing

Patching Guidance:
5. Monitor libopensc project repositories (OpenSC GitHub) for security patches and updates
6. When patches become available, test in non-production environments before deployment
7. Prioritize patching for systems handling sensitive transactions or authentication

Compensating Controls:
8. Implement strict physical security controls around smart card readers
9. Deploy endpoint detection and response (EDR) solutions to detect abnormal smart card reader behavior
10. Use application whitelisting to restrict unauthorized smart card applications
11. Enable detailed logging of all smart card transactions and authentication attempts
12. Implement network segmentation to isolate systems with smart card readers

Detection Rules:
13. Monitor for libopensc process crashes or segmentation faults in system logs
14. Alert on unexpected USB device connections to systems with smart card readers
15. Track failed smart card authentication attempts and unusual APDU responses
16. Monitor memory dumps for uninitialized variable patterns in smart card processing
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. حصر جميع الأنظمة التي تستخدم مكتبة libopensc، خاصة تلك التي تحتوي على قارئات بطاقات ذكية أو دعم رموز USB
2. تعطيل المصادقة بالبطاقات الذكية مؤقتاً إذا كانت طرق مصادقة بديلة متاحة
3. تقييد الوصول الفيزيائي إلى قارئات البطاقات الذكية ومنافذ USB على الأنظمة الحرجة
4. مراقبة سجلات النظام للأعطال أو الأخطاء غير المتوقعة في معالجة البطاقات الذكية

إرشادات التصحيح:
5. مراقبة مستودعات مشروع OpenSC (GitHub) للحصول على تصحيحات أمان وتحديثات
6. عند توفر التصحيحات، اختبرها في بيئات غير الإنتاج قبل النشر
7. إعطاء الأولوية لتصحيح الأنظمة التي تتعامل مع معاملات حساسة أو مصادقة

الضوابط البديلة:
8. تنفيذ ضوابط أمان فيزيائية صارمة حول قارئات البطاقات الذكية
9. نشر حلول الكشف والاستجابة للنقاط النهائية (EDR) للكشف عن السلوك غير الطبيعي
10. استخدام القائمة البيضاء للتطبيقات لتقييد تطبيقات البطاقات الذكية غير المصرح بها
11. تفعيل السجلات التفصيلية لجميع معاملات البطاقات الذكية ومحاولات المصادقة
12. تنفيذ تقسيم الشبكة لعزل الأنظمة التي تحتوي على قارئات البطاقات الذكية

قواعد الكشف:
13. مراقبة أعطال عملية libopensc أو أخطاء التجزئة في سجلات النظام
14. تنبيه عند اتصالات أجهزة USB غير المتوقعة بالأنظمة التي تحتوي على قارئات بطاقات ذكية
15. تتبع محاولات المصادقة الفاشلة بالبطاقات الذكية والردود غير العادية للـ APDU
16. مراقبة ملفات الذاكرة للأنماط المتغيرة غير المهيأة في معالجة البطاقات الذكية
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Access Control Policies (smart card authentication) ECC 2024 A.6.2.1 - User Registration and Access Rights Management ECC 2024 A.8.2.3 - Segregation of Duties (authentication mechanisms) ECC 2024 A.12.6.1 - Management of Technical Vulnerabilities
🔵 SAMA CSF
SAMA CSF ID.AM-2 - Hardware and Software Assets (smart card infrastructure) SAMA CSF PR.AC-1 - Access Control Policy (authentication systems) SAMA CSF DE.CM-1 - Detection Processes (monitoring smart card failures) SAMA CSF RS.MI-2 - Incident Response (handling smart card compromise)
🟡 ISO 27001:2022
ISO 27001:2022 A.5.15 - Access Control (authentication mechanisms) ISO 27001:2022 A.8.1 - Cryptography (PKI and smart card systems) ISO 27001:2022 A.8.2 - Cryptographic Controls (certificate management) ISO 27001:2022 A.12.6.1 - Management of Technical Vulnerabilities
🟣 PCI DSS v4.0.1
PCI DSS 2.1 - Configuration Standards (smart card reader security) PCI DSS 6.2 - Security Patches (libopensc updates) PCI DSS 7.1 - Access Control (authentication systems) PCI DSS 10.2 - Logging and Monitoring (smart card transactions)
📊 CVSS Score
5.7
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack VectorP — Physical
Attack ComplexityH — High
Privileges RequiredN — None / Network
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityH — High
IntegrityN — None / Network
AvailabilityH — High
📋 Quick Facts
Severity Medium
CVSS Score5.7
EPSS0.02%
Exploit No
Patch ✗ No
Published 2026-04-23
Source Feed nvd
Views 1
🇸🇦 Saudi Risk Score
5.8
/ 10.0 — Saudi Risk
Priority: HIGH
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