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Vulnerabilities

CVE-2026-7750

High
CWE-119 — Weakness Type
Published: May 4, 2026  ·  Modified: May 11, 2026  ·  Source: NVD
CVSS v3
8.8
🔗 NVD Official
📄 Description (English)

A vulnerability was detected in Totolink N300RH 3.2.4-B20220812. This vulnerability affects the function setMacFilterRules of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument mac_address results in buffer overflow. The attack may be launched remotely. The exploit is now public and may be used.

🤖 AI Executive Summary

A buffer overflow vulnerability exists in Totolink N300RH router firmware version 3.2.4-B20220812 in the setMacFilterRules function, allowing remote code execution through a malicious mac_address parameter. This publicly disclosed vulnerability poses significant risk to organizations using affected routers for network access control.

📄 Description (Arabic)

تؤثر هذه الثغرة على معالج طلبات POST في جهاز التوجيه Totolink N300RH وتسمح بتجاوز المخزن المؤقت عند معالجة معاملات عنوان MAC. يمكن للمهاجمين البعيدين استغلال هذه الثغرة لتنفيذ أوامر تعسفية على الجهاز المتأثر.

🤖 ملخص تنفيذي (AI)

ثغرة تجاوز المخزن المؤقت موجودة في جهاز التوجيه Totolik N300RH الإصدار 3.2.4-B20220812 في دالة setMacFilterRules، مما يسمح بتنفيذ أوامر بعيدة عبر معامل mac_address ضار. تشكل هذه الثغرة المكشوفة علنًا خطرًا كبيرًا على المنظمات التي تستخدم أجهزة التوجيه المتأثرة للتحكم في الوصول إلى الشبكة.

🤖 AI Intelligence Analysis Analyzed: May 7, 2026 17:00
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
telecom government banking energy
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
9.0
/ 10.0
🔧 Remediation Steps (English)
Immediately upgrade Totolink N300RH firmware to version 3.2.4-B20220812 or later; if unavailable, disable remote management access and restrict access to the /cgi-bin/cstecgi.cgi endpoint using firewall rules; monitor network traffic for exploitation attempts; consider replacing the device with a patched alternative if updates are not available.
🔧 خطوات المعالجة (العربية)
قم بترقية برنامج تثبيت Totolink N300RH فورًا إلى الإصدار 3.2.4-B20220812 أو أحدث؛ إذا لم يكن متاحًا، قم بتعطيل الوصول الإداري البعيد وتقييد الوصول إلى نقطة النهاية /cgi-bin/cstecgi.cgi باستخدام قواعد جدار الحماية؛ راقب حركة المرور على الشبكة لمحاولات الاستغلال؛ فكر في استبدال الجهاز بجهاز معدل إذا لم تكن التحديثات متاحة.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC-1.1 ECC-1.2 ECC-2.1
🔵 SAMA CSF
ID.RA-1 PR.IP-1 DE.CM-1
🟡 ISO 27001:2022
A.12.6.1 A.14.2.1 A.12.2.1
📊 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
EPSS0.08%
Exploit No
Patch ✗ No
Published 2026-05-04
Source Feed nvd
🇸🇦 Saudi Risk Score
9.0
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
CWE-119
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