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Vulnerabilities

CVE-2018-0167

Critical 🇺🇸 CISA KEV ⚡ Exploit Available
Cisco IOS, XR, and XE Software Buffer Overflow Vulnerability — There is a buffer overflow vulnerability in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS Software, Cisco IOS XE Softwa
Published: Mar 3, 2022  ·  Source: CISA_KEV
CVSS v3
9.0
🔗 NVD Official
📄 Description (English)

Cisco IOS, XR, and XE Software Buffer Overflow Vulnerability — There is a buffer overflow vulnerability in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software which could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition or execute arbitrary code.

🤖 AI Executive Summary

A critical buffer overflow vulnerability exists in Cisco IOS, XE, and XR software's LLDP subsystem that allows unauthenticated adjacent attackers to cause denial of service or execute arbitrary code. This vulnerability affects network infrastructure devices widely deployed in enterprise and government networks.

📄 Description (Arabic)

ثغرة تجاوز المخزن المؤقت في نظام LLDP بأنظمة Cisco تسمح للمهاجمين المجاورين بدون مصادقة بتنفيذ أكواد عشوائية أو إحداث رفض خدمة. تؤثر على أجهزة التوجيه والمبدلات الحرجة في البنية التحتية للشبكات.

🤖 ملخص تنفيذي (AI)

ثغرة حرجة في بروتوكول LLDP بأنظمة Cisco IOS و XE و XR تسمح للمهاجمين المجاورين بدون مصادقة بإحداث رفض الخدمة أو تنفيذ أكواد عشوائية. تؤثر هذه الثغرة على أجهزة البنية التحتية للشبكات المنتشرة على نطاق واسع.

🤖 AI Intelligence Analysis Analyzed: Apr 25, 2026 03:16
🇸🇦 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 Cisco security patches for affected IOS, XE, and XR versions. Disable LLDP if not required for operations. Implement network segmentation to restrict LLDP traffic to trusted adjacent networks. Monitor for suspicious LLDP packets and implement access controls on network devices.
🔧 خطوات المعالجة (العربية)
طبق فوراً تصحيحات أمان Cisco للإصدارات المتأثرة. عطّل بروتوكول LLDP إذا لم يكن ضرورياً. طبق تقسيم الشبكة لتقييد حركة LLDP. راقب الحزم المريبة وطبق ضوابط الوصول على أجهزة الشبكة.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.1 5.2 5.3 6.1 6.2
🔵 SAMA CSF
ID.BE-5 PR.IP-1 PR.IP-12 DE.CM-1
🟡 ISO 27001:2022
A.12.2.1 A.12.6.1 A.14.2.1
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Cisco:IOS, XR, and XE Software
📊 CVSS Score
9.0
/ 10.0 — Critical
📋 Quick Facts
Severity Critical
CVSS Score9.0
EPSS1.15%
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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