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Vulnerabilities

CVE-2022-20821

Critical 🇺🇸 CISA KEV ⚡ Exploit Available
Cisco IOS XR Open Port Vulnerability — Cisco IOS XR software health check opens TCP port 6379 by default on activation. An attacker can connect to the Redis instance on the open port and allow access
Published: May 23, 2022  ·  Source: CISA_KEV
CVSS v3
9.0
🔗 NVD Official
📄 Description (English)

Cisco IOS XR Open Port Vulnerability — Cisco IOS XR software health check opens TCP port 6379 by default on activation. An attacker can connect to the Redis instance on the open port and allow access to the Redis instance that is running within the NOSi container.

🤖 AI Executive Summary

Cisco IOS XR software leaves TCP port 6379 (Redis) open by default during health check activation, allowing unauthenticated remote attackers to access the Redis instance. This critical vulnerability enables attackers to read sensitive data, modify configurations, or execute arbitrary commands on affected network devices.

📄 Description (Arabic)

ثغرة في برنامج Cisco IOS XR تؤدي إلى فتح منفذ Redis 6379 بشكل افتراضي عند تفعيل فحص الصحة. يمكن للمهاجمين الاتصال بخادم Redis بدون مصادقة والوصول إلى البيانات الحساسة والتحكم في الأجهزة. تؤثر هذه الثغرة على أجهزة التوجيه والمحولات الحرجة في البنية التحتية للشبكات.

🤖 ملخص تنفيذي (AI)

برنامج Cisco IOS XR يترك منفذ TCP 6379 (Redis) مفتوحاً بشكل افتراضي أثناء تفعيل فحص الصحة، مما يسمح للمهاجمين بالوصول غير المصرح إلى خادم Redis. تمكن هذه الثغرة الحرجة المهاجمين من قراءة البيانات الحساسة أو تعديل الإعدادات أو تنفيذ أوامر تعسفية على الأجهزة المتأثرة.

🤖 AI Intelligence Analysis Analyzed: Apr 21, 2026 03:01
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
telecom government energy banking
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
9.0
/ 10.0
🔧 Remediation Steps (English)
Immediately disable the health check feature if not required, or upgrade to patched Cisco IOS XR versions. Implement network segmentation and firewall rules to restrict access to port 6379. Monitor for unauthorized connections to port 6379 and apply vendor security patches as soon as available.
🔧 خطوات المعالجة (العربية)
عطّل ميزة فحص الصحة فوراً إذا لم تكن مطلوبة، أو قم بالترقية إلى إصدارات Cisco IOS XR المصححة. طبّق تقسيم الشبكة وقواعد جدار الحماية لتقييد الوصول إلى المنفذ 6379. راقب الاتصالات غير المصرح بها بالمنفذ 6379 وطبّق تصحيحات الأمان من المورد في أقرب وقت.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.1 5.2 5.3 6.1 6.2
🔵 SAMA CSF
ID.AM-2 PR.AC-1 PR.AC-3 DE.CM-1
🟡 ISO 27001:2022
A.12.4.1 A.13.1.1 A.13.1.3 A.14.1.1
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Cisco:IOS XR
📊 CVSS Score
9.0
/ 10.0 — Critical
📋 Quick Facts
Severity Critical
CVSS Score9.0
EPSS19.13%
Exploit ✓ Yes
Patch ✓ Yes
CISA KEV🇺🇸 Yes
KEV Due Date2022-06-13
Published 2022-05-23
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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