📧 info@ciso.sa | 📱 +966550939344 | Riyadh, Kingdom of Saudi Arabia
🔧 Scheduled Maintenance — Saturday 2:00-4:00 AM AST. Some features may be temporarily unavailable.    ●   
💎
Pro Plan 50% Off Unlock all AI features, unlimited reports, and priority support. Upgrade
Search Center
ESC to close
Global phishing Cross-sector HIGH 10m Global data_breach Energy CRITICAL 1h Global phishing Government/Multi-sector HIGH 2h Global apt Education CRITICAL 4h Global vulnerability Enterprise Software / ERP Systems CRITICAL 5h Global vulnerability IT Infrastructure CRITICAL 6h Global vulnerability Technology and Software Development HIGH 7h Global vulnerability Enterprise IT and Government CRITICAL 7h Global ransomware Multiple Sectors / Enterprise CRITICAL 8h Global general Technology and Legal MEDIUM 8h Global phishing Cross-sector HIGH 10m Global data_breach Energy CRITICAL 1h Global phishing Government/Multi-sector HIGH 2h Global apt Education CRITICAL 4h Global vulnerability Enterprise Software / ERP Systems CRITICAL 5h Global vulnerability IT Infrastructure CRITICAL 6h Global vulnerability Technology and Software Development HIGH 7h Global vulnerability Enterprise IT and Government CRITICAL 7h Global ransomware Multiple Sectors / Enterprise CRITICAL 8h Global general Technology and Legal MEDIUM 8h Global phishing Cross-sector HIGH 10m Global data_breach Energy CRITICAL 1h Global phishing Government/Multi-sector HIGH 2h Global apt Education CRITICAL 4h Global vulnerability Enterprise Software / ERP Systems CRITICAL 5h Global vulnerability IT Infrastructure CRITICAL 6h Global vulnerability Technology and Software Development HIGH 7h Global vulnerability Enterprise IT and Government CRITICAL 7h Global ransomware Multiple Sectors / Enterprise CRITICAL 8h Global general Technology and Legal MEDIUM 8h
Vulnerabilities

CVE-2026-5153

Medium
A flaw has been found in Tenda CH22 1.0.0.1. The affected element is the function FormWriteFacMac of the file /goform/WriteFacMac. Executing a manipulation of the argument mac can lead to command inje
CWE-74 — Weakness Type
Published: Mar 30, 2026  ·  Modified: Apr 2, 2026  ·  Source: NVD
CVSS v3
6.3
🔗 NVD Official
📄 Description (English)

A flaw has been found in Tenda CH22 1.0.0.1. The affected element is the function FormWriteFacMac of the file /goform/WriteFacMac. Executing a manipulation of the argument mac can lead to command injection. The attack may be launched remotely. The exploit has been published and may be used.

🤖 AI Executive Summary

CVE-2026-5153 is a command injection vulnerability in Tenda CH22 router firmware (version 1.0.0.1) affecting the /goform/WriteFacMac endpoint. An unauthenticated attacker can manipulate the 'mac' parameter to execute arbitrary commands on the device. With a CVSS score of 6.3 and published exploit details, this poses a significant risk to network infrastructure in Saudi organizations relying on Tenda networking equipment.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 18, 2026 03:19
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi telecommunications providers (STC, Mobily, Zain), ISPs, and enterprise networks using Tenda CH22 routers as edge devices. Government agencies (NCA, NCSA), banking sector (SAMA-regulated institutions), and healthcare organizations utilizing these routers for network connectivity face risks of unauthorized access, data interception, and network compromise. Small and medium enterprises across all sectors are particularly vulnerable due to limited security monitoring capabilities.
🏢 Affected Saudi Sectors
Telecommunications (STC, Mobily, Zain) Government (NCA, NCSA) Banking (SAMA-regulated institutions) Healthcare Energy (ARAMCO subsidiaries) ISPs and Internet Service Providers Small and Medium Enterprises
⚖️ Saudi Risk Score (AI)
7.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Tenda CH22 devices in your network using network scanning tools (nmap, Shodan queries)
2. Isolate affected devices from critical network segments if possible
3. Implement network-level access controls restricting access to /goform/WriteFacMac endpoint
4. Monitor router logs for suspicious MAC address modification attempts

COMPENSATING CONTROLS (until patch available):
5. Deploy Web Application Firewall (WAF) rules to block requests containing special characters (;, |, &, `, $, etc.) in the 'mac' parameter
6. Implement network segmentation to limit router access to authorized administrators only
7. Enable router authentication if available and change default credentials
8. Disable remote management features on the router

DETECTION RULES:
9. Monitor for HTTP POST requests to /goform/WriteFacMac with non-standard MAC format patterns
10. Alert on command injection payloads: grep for patterns like 'mac=.*[;|&`$()]'
11. Track failed and successful MAC address modifications in router logs
12. Monitor for unexpected process execution on router devices

LONG-TERM:
13. Contact Tenda support for patch availability and timeline
14. Plan firmware upgrade immediately upon patch release
15. Consider replacing Tenda CH22 with alternative vendors if patch is not forthcoming
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة Tenda CH22 في شبكتك باستخدام أدوات المسح (nmap، استعلامات Shodan)
2. عزل الأجهزة المتأثرة عن القطاعات الحرجة في الشبكة إن أمكن
3. تطبيق عناصر التحكم في الوصول على مستوى الشبكة لتقييد الوصول إلى نقطة النهاية /goform/WriteFacMac
4. مراقبة سجلات جهاز التوجيه للكشف عن محاولات تعديل عنوان MAC المريبة

عناصر التحكم التعويضية (حتى توفر التصحيح):
5. نشر قواعد جدار حماية تطبيقات الويب (WAF) لحظر الطلبات التي تحتوي على أحرف خاصة (;، |، &، `، $، إلخ) في معامل 'mac'
6. تطبيق تقسيم الشبكة لتحديد وصول جهاز التوجيه للمسؤولين المصرح لهم فقط
7. تفعيل مصادقة جهاز التوجيه إن أمكن وتغيير بيانات الاعتماد الافتراضية
8. تعطيل ميزات الإدارة البعيدة على جهاز التوجيه

قواعد الكشف:
9. مراقبة طلبات HTTP POST إلى /goform/WriteFacMac بأنماط عنوان MAC غير قياسية
10. تنبيه على حمولات حقن الأوامر: البحث عن أنماط مثل 'mac=.*[;|&`$()]'
11. تتبع تعديلات عنوان MAC الفاشلة والناجحة في سجلات جهاز التوجيه
12. مراقبة تنفيذ العمليات غير المتوقعة على أجهزة التوجيه

المدى الطويل:
13. الاتصال بدعم Tenda للحصول على توفر التصحيح والجدول الزمني
14. التخطيط لترقية البرنامج الثابت فوراً عند إصدار التصحيح
15. النظر في استبدال Tenda CH22 بموردين بدائل إذا لم يتم إصدار التصحيح
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.12.6.1 - Management of technical vulnerabilities ECC 2024 A.14.2.1 - Secure development policy ECC 2024 A.12.3.1 - Configuration management
🔵 SAMA CSF
SAMA CSF ID.BE-1 - Asset management and inventory SAMA CSF PR.DS-6 - Data security and integrity SAMA CSF DE.CM-1 - Detection and analysis
🟡 ISO 27001:2022
ISO 27001:2022 A.12.6.1 - Management of technical vulnerabilities ISO 27001:2022 A.14.2.1 - Secure development, test and acceptance ISO 27001:2022 A.12.3.1 - Configuration management
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Security patches and updates PCI DSS 11.2 - Vulnerability scanning
📊 CVSS Score
6.3
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityL — Low / Local
IntegrityL — Low / Local
AvailabilityL — Low / Local
📋 Quick Facts
Severity Medium
CVSS Score6.3
CWECWE-74
EPSS0.68%
Exploit No
Patch ✗ No
Published 2026-03-30
Source Feed nvd
Views 4
🇸🇦 Saudi Risk Score
7.2
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-74
Share this CVE
📣 Found this valuable?
Share it with your cybersecurity network
in LinkedIn 𝕏 X / Twitter 💬 WhatsApp ✈ Telegram
🍪 Privacy Preferences
CISO Consulting — Compliant with Saudi Personal Data Protection Law (PDPL)
We use cookies and similar technologies to provide the best experience on our platform. You can choose which types you accept.
🔒
Essential Always On
Required for the website to function properly. Cannot be disabled.
📋 Sessions, CSRF tokens, authentication, language preferences
📊
Analytics
Help us understand how visitors use the site and improve performance.
📋 Page views, session duration, traffic sources, performance metrics
⚙️
Functional
Enable enhanced features like content personalization and preferences.
📋 Dark/light theme, font size, custom dashboards, saved filters
📣
Marketing
Used to deliver content and ads relevant to your interests.
📋 Campaign tracking, retargeting, social media analytics
Privacy Policy →
CISO AI Assistant
Ask anything · Documents · Support
🔐

Introduce Yourself

Enter your details to access the full assistant

Your info is private and never shared
💬
CyberAssist
Online · responds in seconds
5 / 5
🔐 Verify Your Identity

Enter your email to receive a verification code before submitting a support request.

Enter to send · / for commands 0 / 2000
CISO AI · Powered by Anthropic Claude
✦ Quick Survey Help Us Improve CISO Consulting Your feedback shapes the future of our platform — takes less than 2 minutes.
⚠ Please answer this question to continue

How would you rate your overall experience with our platform?

Rate from 1 (poor) to 5 (excellent)

🎉
Thank you!
Your response has been recorded.