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Vulnerabilities

CVE-2026-5177

Medium
A weakness has been identified in Totolink A3300R 17.0.0cu.557_b20221024. Affected by this vulnerability is the function setWiFiBasicCfg of the file /cgi-bin/cstecgi.cgi. Executing a manipulation of t
CWE-74 — Weakness Type
Published: Mar 31, 2026  ·  Modified: Apr 2, 2026  ·  Source: NVD
CVSS v3
6.3
🔗 NVD Official
📄 Description (English)

A weakness has been identified in Totolink A3300R 17.0.0cu.557_b20221024. Affected by this vulnerability is the function setWiFiBasicCfg of the file /cgi-bin/cstecgi.cgi. Executing a manipulation of the argument rxRate can lead to command injection. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks.

🤖 AI Executive Summary

CVE-2026-5177 is a command injection vulnerability in Totolik A3300R routers affecting firmware version 17.0.0cu.557_b20221024. The vulnerability exists in the WiFi configuration function and can be exploited remotely by manipulating the rxRate parameter. With no patch currently available and public exploit details disclosed, this poses an immediate risk to organizations using affected routers.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 18, 2026 03:17
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi organizations in telecommunications (STC, Mobily, Zain), government agencies, and enterprises using Totolik A3300R routers for network infrastructure. Banking and financial institutions using these routers for branch connectivity face elevated risk of unauthorized access and data exfiltration. Government entities under NCA oversight and critical infrastructure operators are particularly vulnerable due to the remote exploitability and lack of available patches.
🏢 Affected Saudi Sectors
Telecommunications (STC, Mobily, Zain) Government and Public Administration Banking and Financial Services Energy and Utilities Healthcare Education Enterprise Networks
⚖️ Saudi Risk Score (AI)
7.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Totolik A3300R devices running firmware 17.0.0cu.557_b20221024 in your network inventory
2. Isolate affected routers from critical network segments if possible
3. Implement network segmentation to restrict access to router management interfaces
4. Monitor router logs for suspicious WiFi configuration changes

PATCHING GUIDANCE:
1. Check Totolik's official website for firmware updates beyond version 17.0.0cu.557_b20221024
2. If updates available, schedule immediate patching during maintenance windows
3. Maintain offline backups before firmware updates

COMPENSATING CONTROLS (until patch available):
1. Restrict access to /cgi-bin/cstecgi.cgi via firewall rules
2. Implement WAF rules to block requests with suspicious rxRate parameters
3. Disable remote management interfaces if not required
4. Change default credentials and implement strong authentication
5. Deploy IDS/IPS signatures to detect command injection attempts

DETECTION RULES:
1. Monitor HTTP POST requests to /cgi-bin/cstecgi.cgi with setWiFiBasicCfg function
2. Alert on rxRate parameters containing shell metacharacters (;, |, &, $, `, etc.)
3. Track unauthorized WiFi configuration changes in router logs
4. Monitor for unexpected process execution from router processes
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة Totolik A3300R التي تعمل بإصدار البرنامج الثابت 17.0.0cu.557_b20221024 في جرد الشبكة
2. عزل أجهزة التوجيه المتأثرة عن قطاعات الشبكة الحرجة إن أمكن
3. تنفيذ تقسيم الشبكة لتقييد الوصول إلى واجهات إدارة جهاز التوجيه
4. مراقبة سجلات جهاز التوجيه للتغييرات المريبة في تكوين WiFi

إرشادات التصحيح:
1. التحقق من موقع Totolik الرسمي للحصول على تحديثات البرنامج الثابت بعد الإصدار 17.0.0cu.557_b20221024
2. إذا كانت التحديثات متاحة، جدولة التصحيح الفوري خلال نوافذ الصيانة
3. الاحتفاظ بنسخ احتياطية دون اتصال قبل تحديثات البرنامج الثابت

الضوابط البديلة (حتى توفر التصحيح):
1. تقييد الوصول إلى /cgi-bin/cstecgi.cgi عبر قواعد جدار الحماية
2. تنفيذ قواعد WAF لحظر الطلبات ذات معاملات rxRate المريبة
3. تعطيل واجهات الإدارة البعيدة إذا لم تكن مطلوبة
4. تغيير بيانات الاعتماد الافتراضية وتنفيذ المصادقة القوية
5. نشر توقيعات IDS/IPS للكشف عن محاولات حقن الأوامر

قواعد الكشف:
1. مراقبة طلبات HTTP POST إلى /cgi-bin/cstecgi.cgi باستخدام وظيفة setWiFiBasicCfg
2. التنبيه على معاملات rxRate التي تحتوي على أحرف shell metacharacters (;, |, &, $, `, إلخ)
3. تتبع تغييرات تكوين WiFi غير المصرح بها في سجلات جهاز التوجيه
4. مراقبة تنفيذ العمليات غير المتوقعة من عمليات جهاز التوجيه
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information security policies and procedures A.8.1.1 - User access management A.12.2.1 - Change management procedures A.12.6.1 - Management of technical vulnerabilities
🔵 SAMA CSF
ID.BE-1 - Asset management PR.AC-1 - Access control policy PR.PT-2 - Security awareness and training DE.CM-1 - The network is monitored to detect potential cybersecurity events
🟡 ISO 27001:2022
A.5.1 - Management direction for information security A.8.1 - User endpoint devices A.12.2 - Change management A.12.6 - Management of technical vulnerabilities
🟣 PCI DSS v4.0.1
Requirement 1.1 - Firewall configuration standards Requirement 2.1 - Default security parameters Requirement 6.2 - Security patches and updates
📊 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
EPSS0.91%
Exploit No
Patch ✗ No
Published 2026-03-31
Source Feed nvd
Views 4
🇸🇦 Saudi Risk Score
7.2
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-74
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