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Vulnerabilities

CVE-2014-3931

Critical 🇺🇸 CISA KEV ⚡ Exploit Available
Multi-Router Looking Glass (MRLG) Critical Buffer Overflow Vulnerability (CVE-2014-3931)
Published: Jul 7, 2025  ·  Source: CISA_KEV
CVSS v3
9.0
🔗 NVD Official
📄 Description (English)

Multi-Router Looking Glass (MRLG) Buffer Overflow Vulnerability — Multi-Router Looking Glass (MRLG) contains a buffer overflow vulnerability that could allow remote attackers to cause an arbitrary memory write and memory corruption.

🤖 AI Executive Summary

Multi-Router Looking Glass (MRLG) contains a critical buffer overflow vulnerability (CVSS 9.0) allowing remote attackers to execute arbitrary code through memory corruption. Active exploits exist with no official patch available, posing severe risk to network infrastructure monitoring systems.

📄 Description (Arabic)

تؤثر هذه الثغرة الأمنية الحرجة على أداة Multi-Router Looking Glass المستخدمة لمراقبة وتشخيص الشبكات. يمكن للمهاجمين استغلال ثغرة تجاوز سعة المخزن المؤقت لتنفيذ كتابة عشوائية في الذاكرة وإفساد محتوياتها، مما قد يؤدي إلى تنفيذ أوامر عن بُعد والسيطرة الكاملة على النظام. عدم توفر تصحيح رسمي ووجود استغلالات نشطة يجعل هذه الثغرة خطراً مباشراً على المؤسسات التي تستخدم هذه الأداة في بيئات الإنتاج. يُنصح بشدة بإيقاف استخدام هذا البرنامج فوراً واستبداله ببدائل آمنة.

🤖 ملخص تنفيذي (AI)

يحتوي Multi-Router Looking Glass (MRLG) على ثغرة حرجة في تجاوز سعة المخزن المؤقت (CVSS 9.0) تسمح للمهاجمين عن بُعد بتنفيذ أكواد عشوائية من خلال إفساد الذاكرة. توجد استغلالات نشطة دون وجود تصحيح رسمي، مما يشكل خطراً شديداً على أنظمة مراقبة البنية التحتية للشبكات.

🤖 AI Intelligence Analysis Analyzed: Mar 4, 2026 04:03
🇸🇦 Saudi Arabia Impact Assessment
Saudi telecommunications providers, ISPs, and financial institutions using MRLG for network diagnostics face immediate risk of remote code execution and infrastructure compromise. Critical impact on NCA ECC monitoring requirements and SAMA-regulated entities' network security controls.
🏢 Affected Saudi Sectors
الاتصالات وتقنية المعلومات الخدمات المالية والمصرفية مزودو خدمات الإنترنت الجهات الحكومية مراكز البيانات
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
9.0
/ 10.0
🔧 Remediation Steps (English)
1. Immediately discontinue use of Multi-Router Looking Glass (MRLG) in production environments and isolate any existing deployments from network access until secure alternatives are implemented.
2. Deploy alternative network diagnostic tools such as modern Looking Glass implementations (e.g., Alice-LG, Birdseye) with active security maintenance and conduct thorough security assessments before deployment.
3. Implement network segmentation and access controls (firewall rules, VPN requirements) for any remaining legacy MRLG instances, restrict access to trusted IP ranges only, enable comprehensive logging, and establish continuous monitoring for exploitation attempts.
🔧 خطوات المعالجة (العربية)
1. إيقاف استخدام Multi-Router Looking Glass (MRLG) فوراً في بيئات الإنتاج وعزل أي نشر حالي عن الوصول للشبكة حتى يتم تطبيق بدائل آمنة.
2. نشر أدوات تشخيص شبكات بديلة مثل تطبيقات Looking Glass الحديثة (مثل Alice-LG أو Birdseye) التي تتمتع بصيانة أمنية نشطة وإجراء تقييمات أمنية شاملة قبل النشر.
3. تطبيق تجزئة الشبكة وضوابط الوصول (قواعد الجدار الناري، متطلبات VPN) لأي نسخ قديمة متبقية من MRLG، وتقييد الوصول لنطاقات IP موثوقة فقط، وتفعيل التسجيل الشامل، وإنشاء مراقبة مستمرة لمحاولات الاستغلال.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC-1-1: Cybersecurity Governance ECC-3-1: Vulnerability Management ECC-4-1: Network Security ECC-5-1: Third-Party and Cloud Computing Services Security
🔵 SAMA CSF
CCC-1.1.1: Asset Management CCC-3.1.1: Vulnerability Assessment CCC-4.1.1: Network Security Controls CCC-6.1.1: Patch Management
🟡 ISO 27001:2022
A.12.6.1: Management of Technical Vulnerabilities A.13.1.1: Network Controls A.14.2.1: Secure Development Policy
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Looking Glass:Multi-Router Looking Glass (MRLG)
📊 CVSS Score
9.0
/ 10.0 — Critical
📋 Quick Facts
Severity Critical
CVSS Score9.0
EPSS35.56%
Exploit ✓ Yes
Patch ✓ Yes
CISA KEV🇺🇸 Yes
KEV Due Date2025-07-28
Published 2025-07-07
Source Feed cisa_kev
Views 2
🇸🇦 Saudi Risk Score
9.0
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
kev actively-exploited
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