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Global data_breach Multiple sectors HIGH 58m 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 58m 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 58m 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-2023-6549

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 a denial-of-service when c
Published: Jan 17, 2024  ·  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 a denial-of-service 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 denial-of-service attacks when configured as VPN gateways or AAA servers. This affects organizations using these devices for remote access and authentication services.

📄 Description (Arabic)

تؤثر هذه الثغرة على أجهزة Citrix NetScaler ADC و Gateway عند تكوينها كخوادم بوابة VPN أو خوادم AAA. يمكن للمهاجمين استغلال تجاوز المخزن المؤقت لإرسال حمولات ضارة تسبب انهيار الخدمة. هذا يؤثر بشكل مباشر على توفر خدمات الوصول عن بعد والمصادقة في المنظمات.

🤖 ملخص تنفيذي (AI)

تحتوي أجهزة Citrix NetScaler ADC و Gateway على ثغرة تجاوز المخزن المؤقت الحرجة التي تمكن هجمات الحرمان من الخدمة عند تكوينها كبوابات VPN أو خوادم AAA. يؤثر هذا على المنظمات التي تستخدم هذه الأجهزة لخدمات الوصول عن بعد والمصادقة.

🤖 AI Intelligence Analysis Analyzed: Apr 19, 2026 06:16
🇸🇦 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. Update to patched versions: 13.1-49.15, 14.1-20.15, or 15.1-8.5 and later. Implement network segmentation to restrict access to NetScaler management interfaces. Monitor for unusual traffic patterns and implement rate limiting on VPN and AAA services.
🔧 خطوات المعالجة (العربية)
طبق فوراً تصحيحات أمان Citrix لـ NetScaler ADC و Gateway. قم بالترقية إلى الإصدارات المصححة: 13.1-49.15 أو 14.1-20.15 أو 15.1-8.5 والإصدارات الأحدث. طبق تقسيم الشبكة لتقييد الوصول إلى واجهات إدارة NetScaler. راقب أنماط حركة المرور غير العادية وطبق تحديد معدل على خدمات VPN و AAA.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.7.1.1 A.7.1.2 A.12.6.1 A.13.1.1
🔵 SAMA CSF
ID.BE-5 PR.DS-6 PR.PT-1 DE.CM-1
🟡 ISO 27001:2022
27001:A.12.2.1 27001:A.12.6.1 27001:A.13.1.1 27001:A.14.2.1
🔗 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
EPSS78.61%
Exploit ✓ Yes
Patch ✓ Yes
CISA KEV🇺🇸 Yes
KEV Due Date2024-02-07
Published 2024-01-17
Source Feed cisa_kev
Views 1
🇸🇦 Saudi Risk Score
9.0
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
kev actively-exploited
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