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Vulnerabilities

CVE-2026-7032

High ⚡ Exploit Available
CWE-119 — Weakness Type
Published: Apr 26, 2026  ·  Modified: May 3, 2026  ·  Source: NVD
CVSS v3
8.8
🔗 NVD Official
📄 Description (English)

A flaw has been found in Tenda F456 1.0.0.5. Affected is the function SafeEmailFilter of the file /goform/SafeEmailFilter. This manipulation of the argument page causes buffer overflow. The attack can be initiated remotely. The exploit has been published and may be used.

🤖 AI Executive Summary

A critical buffer overflow vulnerability exists in Tenda F456 router firmware version 1.0.0.5 affecting the SafeEmailFilter function. The flaw allows remote attackers to execute arbitrary code by manipulating the 'page' parameter, with a CVSS score of 8.8. No patch is currently available, making immediate mitigation essential for affected organizations.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 27, 2026 15:00
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi organizations using Tenda F456 routers, particularly in: Banking sector (SAMA-regulated institutions) for network perimeter security, Government agencies (NCA oversight) managing critical infrastructure, Healthcare facilities requiring secure network access, Telecommunications providers (STC, Mobily) using these devices in network infrastructure, and Energy sector (ARAMCO, SEC) for operational technology networks. Remote code execution capability enables complete device compromise, lateral network movement, and potential data exfiltration.
🏢 Affected Saudi Sectors
Banking and Financial Services Government and Public Administration Healthcare Energy and Utilities Telecommunications Critical Infrastructure
⚖️ Saudi Risk Score (AI)
8.6
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Tenda F456 devices running firmware 1.0.0.5 in your network using asset discovery tools
2. Isolate affected devices from critical network segments if possible
3. Implement network-level access controls restricting access to the /goform/SafeEmailFilter endpoint
4. Monitor for exploitation attempts targeting this specific function

COMPENSATING CONTROLS (until patch available):
5. Deploy WAF/IPS rules blocking requests with suspicious 'page' parameter values to SafeEmailFilter
6. Restrict administrative access to router management interfaces (port 80/443) to trusted IP ranges only
7. Disable SafeEmailFilter functionality if not operationally required
8. Implement network segmentation isolating router management traffic

DETECTION RULES:
9. Monitor for POST requests to /goform/SafeEmailFilter with oversized 'page' parameters
10. Alert on any successful code execution attempts from router processes
11. Track firmware version inventory and flag 1.0.0.5 instances for replacement

LONG-TERM:
12. Contact Tenda for patch availability timeline
13. Plan replacement with patched firmware version or alternative vendor solutions
14. Implement firmware update procedures for future security releases
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة Tenda F456 التي تعمل بالإصدار 1.0.0.5 في شبكتك باستخدام أدوات اكتشاف الأصول
2. عزل الأجهزة المتأثرة عن قطاعات الشبكة الحرجة إن أمكن
3. تطبيق عناصر تحكم الوصول على مستوى الشبكة تقيد الوصول إلى نقطة نهاية /goform/SafeEmailFilter
4. مراقبة محاولات الاستغلال التي تستهدف هذه الوظيفة المحددة

عناصر التحكم التعويضية (حتى توفر التصحيح):
5. نشر قواعد WAF/IPS تحجب الطلبات ذات قيم معاملات 'page' المريبة إلى SafeEmailFilter
6. تقييد الوصول الإداري إلى واجهات إدارة جهاز التوجيه (المنفذ 80/443) إلى نطاقات IP موثوقة فقط
7. تعطيل وظيفة SafeEmailFilter إذا لم تكن مطلوبة تشغيلياً
8. تطبيق تقسيم الشبكة لعزل حركة إدارة جهاز التوجيه

قواعد الكشف:
9. مراقبة طلبات POST إلى /goform/SafeEmailFilter بمعاملات 'page' كبيرة الحجم
10. التنبيه على أي محاولات تنفيذ كود ناجحة من عمليات جهاز التوجيه
11. تتبع جرد إصدار البرنامج الثابت والإشارة إلى حالات 1.0.0.5 للاستبدال

المدى الطويل:
12. الاتصال بـ Tenda للاستفسار عن الجدول الزمني لتوفر التصحيح
13. التخطيط للاستبدال بإصدار برنامج ثابت معدل أو حلول بديلة من البائعين الآخرين
14. تطبيق إجراءات تحديث البرنامج الثابت للإصدارات الأمنية المستقبلية
📋 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.12.2.1 - Monitoring and logging of access
🔵 SAMA CSF
ID.RA-1 - Asset management and vulnerability identification PR.IP-12 - Security patch management DE.CM-1 - Detection and monitoring of network anomalies
🟡 ISO 27001:2022
A.12.6.1 - Management of technical vulnerabilities A.14.2.1 - Secure development and change management A.12.4.1 - Event logging and monitoring
🟣 PCI DSS v4.0.1
Requirement 6.2 - Security patches and updates Requirement 11.2 - Vulnerability scanning
📦 Affected Products / CPE 1 entries
tenda:f456_firmware:1.0.0.5
📊 CVSS Score
8.8
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityH — High
IntegrityH — High
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score8.8
CWECWE-119
EPSS0.05%
Exploit ✓ Yes
Patch ✗ No
Published 2026-04-26
Source Feed nvd
🇸🇦 Saudi Risk Score
8.6
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
CWE-119
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