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Global vulnerability Industrial Control Systems / IoT / Infrastructure CRITICAL 35m Global phishing Multiple sectors HIGH 1h Global insider Cybersecurity Services CRITICAL 1h Global ransomware Multiple sectors (U.S. companies) CRITICAL 1h Global malware Financial Services, Cryptocurrency CRITICAL 2h Global malware Technology and Cloud Services HIGH 2h Global general Financial Services and E-commerce MEDIUM 2h Global data_breach Social Media and Communications CRITICAL 2h Global general Cybersecurity Operations HIGH 3h Global phishing Technology and Consumer Services HIGH 3h Global vulnerability Industrial Control Systems / IoT / Infrastructure CRITICAL 35m Global phishing Multiple sectors HIGH 1h Global insider Cybersecurity Services CRITICAL 1h Global ransomware Multiple sectors (U.S. companies) CRITICAL 1h Global malware Financial Services, Cryptocurrency CRITICAL 2h Global malware Technology and Cloud Services HIGH 2h Global general Financial Services and E-commerce MEDIUM 2h Global data_breach Social Media and Communications CRITICAL 2h Global general Cybersecurity Operations HIGH 3h Global phishing Technology and Consumer Services HIGH 3h Global vulnerability Industrial Control Systems / IoT / Infrastructure CRITICAL 35m Global phishing Multiple sectors HIGH 1h Global insider Cybersecurity Services CRITICAL 1h Global ransomware Multiple sectors (U.S. companies) CRITICAL 1h Global malware Financial Services, Cryptocurrency CRITICAL 2h Global malware Technology and Cloud Services HIGH 2h Global general Financial Services and E-commerce MEDIUM 2h Global data_breach Social Media and Communications CRITICAL 2h Global general Cybersecurity Operations HIGH 3h Global phishing Technology and Consumer Services HIGH 3h
Vulnerabilities

CVE-2015-4852

Critical 🇺🇸 CISA KEV ⚡ Exploit Available
Oracle WebLogic Server Deserialization of Untrusted Data Vulnerability — Oracle WebLogic Server contains a deserialization of untrusted data vulnerability within Apache Commons, which can allow for fo
Published: Nov 3, 2021  ·  Source: CISA_KEV
CVSS v3
9.0
🔗 NVD Official
📄 Description (English)

Oracle WebLogic Server Deserialization of Untrusted Data Vulnerability — Oracle WebLogic Server contains a deserialization of untrusted data vulnerability within Apache Commons, which can allow for for remote code execution.

🤖 AI Executive Summary

CVE-2015-4852 is a critical remote code execution vulnerability in Oracle WebLogic Server affecting Apache Commons deserialization. With a CVSS score of 9.0 and publicly available exploits, this vulnerability poses an immediate threat to organizations running vulnerable WebLogic instances. Attackers can execute arbitrary code without authentication, making this a high-priority threat requiring immediate patching.

📄 Description (Arabic)

خادم Oracle WebLogic يحتوي على ثغرة أمنية حرجة تتعلق بفك تسلسل البيانات غير الموثوقة في مكتبة Apache Commons. هذه الثغرة تسمح للمهاجمين بتنفيذ أكواد برمجية بشكل بعيد على النظام المتأثر.

🤖 ملخص تنفيذي (AI)

يحتوي خادم Oracle WebLogic على ثغرة في فك تسلسل البيانات غير الموثوقة ضمن Apache Commons، مما قد يسمح بتنفيذ أكواد بعيدة.

🤖 AI Intelligence Analysis Analyzed: Apr 3, 2026 20:33
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses critical risk to Saudi banking sector (SAMA-regulated institutions), government agencies (NCA oversight), and large enterprises using WebLogic for mission-critical applications. Saudi Aramco, telecommunications providers (STC, Mobily), and financial institutions are particularly at risk. The lack of authentication requirement means any internet-facing WebLogic instance is immediately exploitable, potentially leading to data breaches, system compromise, and operational disruption.
🏢 Affected Saudi Sectors
Banking and Financial Services Government and Public Administration Energy and Utilities Telecommunications Healthcare Large Enterprises
⚖️ Saudi Risk Score (AI)
9.5
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all WebLogic Server instances in your environment (internal and external-facing)
2. Disable remote access to WebLogic Admin Console if not required
3. Implement network segmentation to restrict access to WebLogic ports (7001, 7002)
4. Enable detailed logging and monitoring for deserialization activities

PATCHING:
1. Apply Oracle Critical Patch Update (CPU) immediately - this CVE has been patched since October 2015
2. Upgrade to WebLogic Server 12.1.3, 12.2.1, or later versions
3. If immediate patching is not possible, apply vendor-supplied patches for Apache Commons libraries

COMPENSATING CONTROLS:
1. Deploy Web Application Firewall (WAF) rules to block malicious serialized objects
2. Implement strict input validation and disable Java deserialization where possible
3. Use Java deserialization filters to whitelist safe classes
4. Restrict network access to WebLogic ports using firewall rules

DETECTION:
1. Monitor for suspicious serialized object patterns in network traffic
2. Alert on failed deserialization attempts in WebLogic logs
3. Track unusual process execution spawned from WebLogic JVM
4. Monitor for outbound connections from WebLogic processes to suspicious IPs
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع خوادم WebLogic في بيئتك (الداخلية والخارجية)
2. تعطيل الوصول البعيد إلى وحدة تحكم WebLogic Admin إن لم تكن مطلوبة
3. تطبيق تقسيم الشبكة لتقييد الوصول إلى منافذ WebLogic (7001، 7002)
4. تفعيل السجلات المفصلة والمراقبة لأنشطة فك التسلسل

التصحيح:
1. تطبيق تحديث Oracle Critical Patch Update (CPU) فوراً - تم تصحيح هذه الثغرة منذ أكتوبر 2015
2. الترقية إلى WebLogic Server 12.1.3 أو 12.2.1 أو إصدارات أحدث
3. إذا لم يكن التصحيح الفوري ممكناً، طبق التصحيحات المقدمة من البائع لمكتبات Apache Commons

الضوابط البديلة:
1. نشر قواعد جدار حماية تطبيقات الويب (WAF) لحجب الكائنات المسلسلة الضارة
2. تطبيق التحقق الصارم من المدخلات وتعطيل فك تسلسل Java حيث أمكن
3. استخدام مرشحات فك تسلسل Java لإدراج الفئات الآمنة في القائمة البيضاء
4. تقييد الوصول إلى منافذ WebLogic باستخدام قواعد جدار الحماية

الكشف:
1. مراقبة أنماط الكائنات المسلسلة المريبة في حركة المرور
2. التنبيه على محاولات فك التسلسل الفاشلة في سجلات WebLogic
3. تتبع تنفيذ العمليات غير العادية من JVM في WebLogic
4. مراقبة الاتصالات الصادرة من عمليات WebLogic إلى عناوين IP مريبة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.12.6.1 - Management of technical vulnerabilities ECC 2024 A.14.2.1 - Secure development policy ECC 2024 A.12.3.1 - Configuration management
🔵 SAMA CSF
SAMA CSF ID.BE-5.1 - Cybersecurity risk management SAMA CSF PR.IP-12 - Software, firmware, and information integrity mechanisms SAMA CSF DE.CM-1 - The network is monitored to detect potential cybersecurity events
🟡 ISO 27001:2022
ISO 27001:2022 A.12.6.1 - Management of technical vulnerabilities ISO 27001:2022 A.14.2.1 - Secure development policy ISO 27001:2022 A.8.1.1 - Inventory of assets
🟣 PCI DSS v4.0
PCI DSS 6.2 - Ensure that all system components and software are protected from known vulnerabilities PCI DSS 11.2 - Run automated vulnerability scanning tools regularly
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Oracle:WebLogic Server
📊 CVSS Score
9.0
/ 10.0 — Critical
📋 Quick Facts
Severity Critical
CVSS Score9.0
EPSS92.72%
Exploit ✓ Yes
Patch ✓ Yes
CISA KEV🇺🇸 Yes
KEV Due Date2022-05-03
Published 2021-11-03
Source Feed cisa_kev
Views 1
🇸🇦 Saudi Risk Score
9.5
/ 10.0 — Saudi Risk
🏷️ Tags
kev actively-exploited
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