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Vulnerabilities

CVE-2023-27997

Critical 🇺🇸 CISA KEV ⚡ Exploit Available
Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Vulnerability — Fortinet FortiOS and FortiProxy SSL-VPN contain a heap-based buffer overflow vulnerability which can allow an unauthe
Published: Jun 13, 2023  ·  Source: CISA_KEV
CVSS v3
9.0
🔗 NVD Official
📄 Description (English)

Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Vulnerability — Fortinet FortiOS and FortiProxy SSL-VPN contain a heap-based buffer overflow vulnerability which can allow an unauthenticated, remote attacker to execute code or commands via specifically crafted requests.

🤖 AI Executive Summary

Fortinet FortiOS and FortiProxy SSL-VPN contain a critical heap-based buffer overflow vulnerability allowing unauthenticated remote code execution. This vulnerability affects VPN gateway systems and requires immediate patching to prevent unauthorized access and system compromise.

📄 Description (Arabic)

تحتوي خوادم Fortinet FortiOS و FortiProxy على ثغرة تجاوز المخزن المؤقت في مكون SSL-VPN تسمح بتنفيذ أوامر بعيدة بدون مصادقة. يمكن للمهاجمين استغلال هذه الثغرة من خلال إرسال طلبات مصممة خصيصاً للتحكم الكامل في النظام.

🤖 ملخص تنفيذي (AI)

Fortinet FortiOS and FortiProxy SSL-VPN contain a critical heap-based buffer overflow vulnerability allowing unauthenticated remote code execution. This vulnerability affects VPN gateway systems and requires immediate patching to prevent unauthorized access and system compromise.

🤖 AI Intelligence Analysis Analyzed: Apr 21, 2026 16:00
🇸🇦 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 update Fortinet FortiOS and FortiProxy to patched versions (7.2.4, 7.0.10, 6.4.13 or later). Implement network segmentation to restrict SSL-VPN access, monitor for suspicious connection attempts, and disable SSL-VPN if not required. Apply WAF rules and IDS signatures for detection.
🔧 خطوات المعالجة (العربية)
قم بتحديث Fortinet FortiOS و FortiProxy فوراً إلى الإصدارات المصححة (7.2.4، 7.0.10، 6.4.13 أو أحدث). طبق تقسيم الشبكة لتقييد وصول SSL-VPN، راقب محاولات الاتصال المريبة، وعطل SSL-VPN إذا لم تكن مطلوبة. طبق قواعد WAF وتوقيعات IDS للكشف.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
2.1.1 2.2.1 3.1.1 3.2.1
🔵 SAMA CSF
ID.BE-5.1 PR.AC-1.1 PR.AC-3.1 DE.CM-1.1
🟡 ISO 27001:2022
A.6.1.1 A.8.1.1 A.9.1.1 A.12.6.1
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Fortinet:FortiOS and FortiProxy SSL-VPN
📊 CVSS Score
9.0
/ 10.0 — Critical
📋 Quick Facts
Severity Critical
CVSS Score9.0
EPSS90.68%
Exploit ✓ Yes
Patch ✓ Yes
CISA KEV🇺🇸 Yes
KEV Due Date2023-07-04
Published 2023-06-13
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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