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Vulnerabilities

CVE-2018-0173

Critical 🇺🇸 CISA KEV ⚡ Exploit Available
Cisco IOS and IOS XE Software Improper Input Validation Vulnerability — A vulnerability in the Cisco IOS Software and Cisco IOS XE Software function that restores encapsulated option 82 information in
Published: Mar 3, 2022  ·  Source: CISA_KEV
CVSS v3
9.0
🔗 NVD Official
📄 Description (English)

Cisco IOS and IOS XE Software Improper Input Validation Vulnerability — A vulnerability in the Cisco IOS Software and Cisco IOS XE Software function that restores encapsulated option 82 information in DHCP Version 4 (DHCPv4) packets can allow for denial-of-service (DoS).

🤖 AI Executive Summary

Cisco IOS and IOS XE Software contains an improper input validation vulnerability in DHCP option 82 handling that allows remote attackers to cause denial-of-service conditions. The vulnerability affects network devices processing specially crafted DHCPv4 packets.

📄 Description (Arabic)

تتعلق الثغرة بمعالجة غير آمنة لمعلومات الخيار 82 المغلفة في حزم DHCPv4 في أجهزة Cisco. يمكن للمهاجمين استغلال هذه الثغرة بإرسال حزم DHCP مصممة خصيصاً لإيقاف خدمات الشبكة. تؤثر الثغرة على البنية التحتية الحرجة للشبكات في المؤسسات.

🤖 ملخص تنفيذي (AI)

ثغرة في برامج Cisco IOS و IOS XE تتعلق بالتحقق غير الصحيح من المدخلات في معالجة خيار DHCP 82 تسمح بهجمات الحرمان من الخدمة. تؤثر الثغرة على أجهزة الشبكة التي تعالج حزم DHCPv4 المصممة خصيصاً.

🤖 AI Intelligence Analysis Analyzed: Apr 25, 2026 00:10
🇸🇦 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)
Upgrade Cisco IOS and IOS XE Software to patched versions. Apply security patches immediately as detailed in Cisco Security Advisory. Implement network segmentation to restrict DHCP traffic sources. Monitor for abnormal DHCP packets and implement rate limiting on DHCP servers.
🔧 خطوات المعالجة (العربية)
قم بترقية برامج Cisco IOS و IOS XE إلى الإصدارات المصححة. طبق تصحيحات الأمان فوراً كما هو موضح في استشارة Cisco الأمنية. طبق تقسيم الشبكة لتقييد مصادر حركة DHCP. راقب حزم DHCP غير الطبيعية وطبق تحديد معدل على خوادم DHCP.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
3.1 3.2 4.1 4.2
🔵 SAMA CSF
ID.BE-1 PR.IP-1 PR.IP-2 DE.CM-1
🟡 ISO 27001:2022
A.12.2.1 A.12.6.1 A.13.1.1 A.14.2.1
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Cisco:IOS and IOS XE Software
📊 CVSS Score
9.0
/ 10.0 — Critical
📋 Quick Facts
Severity Critical
CVSS Score9.0
EPSS4.07%
Exploit ✓ Yes
Patch ✓ Yes
CISA KEV🇺🇸 Yes
KEV Due Date2022-03-17
Published 2022-03-03
Source Feed cisa_kev
Views 5
🇸🇦 Saudi Risk Score
9.0
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
kev actively-exploited
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