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Global data_breach Multiple sectors HIGH 59m Global vulnerability Government and Critical Infrastructure CRITICAL 1h Global vulnerability Multiple sectors CRITICAL 1h Global apt Financial Services, Government HIGH 1h Global insider Cross-sector CRITICAL 2h Global vulnerability Multiple sectors CRITICAL 2h Global vulnerability Information Technology / Software Infrastructure CRITICAL 2h Global data_breach Healthcare CRITICAL 2h Global malware Financial Services HIGH 2h Global vulnerability Technology/Software Development HIGH 3h Global data_breach Multiple sectors HIGH 59m Global vulnerability Government and Critical Infrastructure CRITICAL 1h Global vulnerability Multiple sectors CRITICAL 1h Global apt Financial Services, Government HIGH 1h Global insider Cross-sector CRITICAL 2h Global vulnerability Multiple sectors CRITICAL 2h Global vulnerability Information Technology / Software Infrastructure CRITICAL 2h Global data_breach Healthcare CRITICAL 2h Global malware Financial Services HIGH 2h Global vulnerability Technology/Software Development HIGH 3h Global data_breach Multiple sectors HIGH 59m Global vulnerability Government and Critical Infrastructure CRITICAL 1h Global vulnerability Multiple sectors CRITICAL 1h Global apt Financial Services, Government HIGH 1h Global insider Cross-sector CRITICAL 2h Global vulnerability Multiple sectors CRITICAL 2h Global vulnerability Information Technology / Software Infrastructure CRITICAL 2h Global data_breach Healthcare CRITICAL 2h Global malware Financial Services HIGH 2h Global vulnerability Technology/Software Development HIGH 3h
Vulnerabilities

CVE-2023-4966

Critical 🇺🇸 CISA KEV ⚡ Exploit Available
Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability — Citrix NetScaler ADC and NetScaler Gateway contain a buffer overflow vulnerability that allows for sensitive information disc
Published: Oct 18, 2023  ·  Source: CISA_KEV
CVSS v3
9.0
🔗 NVD Official
📄 Description (English)

Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability — Citrix NetScaler ADC and NetScaler Gateway contain a buffer overflow vulnerability that allows for sensitive information disclosure when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server.

🤖 AI Executive Summary

Citrix NetScaler ADC and Gateway contain a critical buffer overflow vulnerability enabling sensitive information disclosure through VPN, ICA Proxy, CVPN, RDP Proxy, or AAA virtual servers. Organizations using these gateways for remote access face immediate risk of credential and data exposure.

📄 Description (Arabic)

تؤثر هذه الثغرة على بوابات Citrix NetScaler المستخدمة للوصول البعيد والمصادقة، مما يسمح بقراءة الذاكرة واستخراج بيانات حساسة مثل بيانات اعتماد المستخدمين. الهجوم لا يتطلب مصادقة ويمكن تنفيذه عن بعد، مما يجعله تهديداً فورياً للمنظمات.

🤖 ملخص تنفيذي (AI)

ثغرة تجاوز المخزن المؤقت في Citrix NetScaler ADC و Gateway تسمح بالكشف عن المعلومات الحساسة عند تكوينها كخادم بوابة أو خادم AAA. المنظمات التي تستخدم هذه البوابات للوصول البعيد تواجه خطراً فورياً من تسرب بيانات المستخدمين.

🤖 AI Intelligence Analysis Analyzed: Apr 19, 2026 09:18
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
banking telecom energy government healthcare
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
9.0
/ 10.0
🔧 Remediation Steps (English)
Immediately apply Citrix security patches for NetScaler ADC and Gateway versions affected by CVE-2023-4966. Disable unnecessary virtual server types (VPN, ICA Proxy, CVPN, RDP Proxy) if not required. Implement network segmentation to restrict access to NetScaler management interfaces. Monitor for suspicious authentication attempts and data exfiltration. Conduct forensic analysis for potential compromise.
🔧 خطوات المعالجة (العربية)
طبق فوراً تصحيحات أمان Citrix لإصدارات NetScaler المتأثرة. عطّل أنواع الخوادم الافتراضية غير الضرورية إن لم تكن مطلوبة. طبق تقسيم الشبكة لتقييد الوصول إلى واجهات إدارة NetScaler. راقب محاولات المصادقة المريبة وتسرب البيانات. أجرِ تحليلاً جنائياً للتحقق من الاختراق المحتمل.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.1 5.2 6.1 6.2
🔵 SAMA CSF
ID.AM-2 PR.DS-1 PR.PT-1 DE.CM-1
🟡 ISO 27001:2022
A.12.6.1 A.14.2.1 A.14.2.5
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Citrix:NetScaler ADC and NetScaler Gateway
📊 CVSS Score
9.0
/ 10.0 — Critical
📋 Quick Facts
Severity Critical
CVSS Score9.0
EPSS94.35%
Exploit ✓ Yes
Patch ✓ Yes
CISA KEV🇺🇸 Yes
KEV Due Date2023-11-08
Published 2023-10-18
Source Feed cisa_kev
Views 1
🇸🇦 Saudi Risk Score
9.0
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
kev actively-exploited ransomware
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