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Vulnerabilities

CVE-2016-4171

Critical 🇺🇸 CISA KEV ⚡ Exploit Available
Adobe Flash Player Remote Code Execution Vulnerability — Unspecified vulnerability in Adobe Flash Player allows for remote code execution.
Published: Mar 25, 2022  ·  Source: CISA_KEV
CVSS v3
9.0
🔗 NVD Official
📄 Description (English)

Adobe Flash Player Remote Code Execution Vulnerability — Unspecified vulnerability in Adobe Flash Player allows for remote code execution.

🤖 AI Executive Summary

CVE-2016-4171 is a critical remote code execution vulnerability in Adobe Flash Player that was actively exploited in the wild as a zero-day. With a CVSS score of 9.0 and known exploits available, this vulnerability allows attackers to execute arbitrary code on affected systems simply by luring users to malicious web content. Despite being a legacy vulnerability from 2016, organizations still running Flash Player remain at severe risk, and this CVE has been included in CISA's Known Exploited Vulnerabilities catalog.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 5, 2026 21:17
🇸🇦 Saudi Arabia Impact Assessment
المؤسسات السعودية التي لا تزال تستخدم أنظمة قديمة تعتمد على Adobe Flash Player معرضة للخطر بشكل خاص. القطاع الحكومي (NCA) والقطاع المصرفي (SAMA) قد يتأثران إذا كانت هناك تطبيقات داخلية أو أنظمة قديمة تعتمد على Flash. قطاع الطاقة (أرامكو وسابك) وقطاع الاتصالات (STC وموبايلي) قد يكون لديهم أنظمة SCADA أو بوابات ويب قديمة تستخدم Flash. هذه الثغرة استُخدمت في هجمات APT مستهدفة مما يجعلها ذات صلة بالتهديدات المتقدمة التي تستهدف البنية التحتية الحيوية في المملكة.
🏢 Affected Saudi Sectors
Government Banking Energy Telecommunications Healthcare Education Defense
⚖️ Saudi Risk Score (AI)
8.5
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Remove Adobe Flash Player entirely from all systems — Flash reached end-of-life on December 31, 2020, and should not be present on any production system.
2. Block Flash content at the network perimeter using web proxies and firewalls.
3. Disable Flash Player plugins in all browsers via Group Policy or endpoint management tools.

Patching Guidance:
- If removal is not immediately possible, update to the latest available Flash Player version (though Adobe no longer provides updates).
- Migrate all Flash-dependent applications to HTML5 or modern alternatives.

Compensating Controls:
- Deploy application whitelisting to prevent unauthorized Flash execution.
- Enable exploit protection features (DEP, ASLR) on all endpoints.
- Use network segmentation to isolate legacy systems that require Flash.

Detection Rules:
- Monitor for SWF file downloads and Flash Player process execution.
- Deploy IDS/IPS signatures for CVE-2016-4171 exploit patterns.
- Alert on any Flash Player ActiveX or plugin activity across the enterprise.
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. إزالة Adobe Flash Player بالكامل من جميع الأنظمة — انتهى دعم Flash في 31 ديسمبر 2020 ولا يجب أن يكون موجوداً على أي نظام إنتاجي.
2. حظر محتوى Flash على مستوى الشبكة باستخدام بروكسيات الويب وجدران الحماية.
3. تعطيل إضافات Flash Player في جميع المتصفحات عبر سياسات المجموعة أو أدوات إدارة نقاط النهاية.

إرشادات التصحيح:
- إذا لم تكن الإزالة ممكنة فوراً، قم بالتحديث إلى آخر إصدار متاح من Flash Player (علماً بأن Adobe لم تعد توفر تحديثات).
- ترحيل جميع التطبيقات المعتمدة على Flash إلى HTML5 أو بدائل حديثة.

الضوابط التعويضية:
- نشر قوائم التطبيقات المسموح بها لمنع تنفيذ Flash غير المصرح به.
- تفعيل ميزات الحماية من الاستغلال (DEP, ASLR) على جميع نقاط النهاية.
- استخدام تجزئة الشبكة لعزل الأنظمة القديمة التي تتطلب Flash.

قواعد الكشف:
- مراقبة تنزيلات ملفات SWF وتنفيذ عمليات Flash Player.
- نشر توقيعات IDS/IPS لأنماط استغلال CVE-2016-4171.
- التنبيه على أي نشاط لـ Flash Player ActiveX أو الإضافات عبر المؤسسة.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
2-3-1 (Asset Management) 2-5-1 (Vulnerability Management) 2-6-1 (Patch Management) 2-9-1 (Software Security)
🔵 SAMA CSF
3.3.3 (Patch Management) 3.3.5 (Vulnerability Management) 3.1.3 (Asset Management) 3.3.7 (Endpoint Security)
🟡 ISO 27001:2022
A.8.8 (Management of technical vulnerabilities) A.8.19 (Installation of software on operational systems) A.8.9 (Configuration management)
🟣 PCI DSS v4.0
6.3.3 (Patching security vulnerabilities) 6.2 (System components protected from known vulnerabilities) 5.2 (Anti-malware mechanisms)
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Adobe:Flash Player
📊 CVSS Score
9.0
/ 10.0 — Critical
📋 Quick Facts
Severity Critical
CVSS Score9.0
EPSS50.54%
Exploit ✓ Yes
Patch ✓ Yes
CISA KEV🇺🇸 Yes
KEV Due Date2022-04-15
Published 2022-03-25
Source Feed cisa_kev
Views 1
🇸🇦 Saudi Risk Score
8.5
/ 10.0 — Saudi Risk
🏷️ Tags
kev actively-exploited
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