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Vulnerabilities

CVE-2026-0839

High ⚡ Exploit Available
UTT 520W Router Buffer Overflow Vulnerability in APSecurity Function (CVE-2026-0839)
CWE-119 — Weakness Type
Published: Jan 11, 2026  ·  Modified: Feb 28, 2026  ·  Source: NVD
CVSS v3
8.8
🔗 NVD Official
📄 Description (English)

A weakness has been identified in UTT 进取 520W 1.7.7-180627. Affected is the function strcpy of the file /goform/APSecurity. Executing a manipulation of the argument wepkey1 can lead to buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

🤖 AI Executive Summary

A buffer overflow vulnerability exists in UTT 进取 520W version 1.7.7-180627 in the APSecurity function that improperly handles the wepkey1 parameter via strcpy. Remote attackers can exploit this publicly disclosed vulnerability to execute arbitrary code or cause denial of service.

📄 Description (Arabic)

تم تحديد ضعف في وظيفة strcpy بملف /goform/APSecurity في جهاز UTT 进取 520W الإصدار 1.7.7-180627 حيث يمكن للمهاجمين التلاعب بمعامل wepkey1 لتجاوز المخزن المؤقت. الثغرة قابلة للاستغلال من بعد وتم الإفصاح عنها علنًا، مما يزيد من خطر الهجمات الفعلية.

🤖 ملخص تنفيذي (AI)

ثغرة تجاوز المخزن المؤقت موجودة في إصدار UTT 进取 520W 1.7.7-180627 في وظيفة APSecurity التي تتعامل بشكل غير صحيح مع معامل wepkey1 عبر strcpy. يمكن للمهاجمين البعيدين استغلال هذه الثغرة المعروفة علنًا لتنفيذ كود تعسفي أو التسبب في رفض الخدمة.

🤖 AI Intelligence Analysis Analyzed: May 1, 2026 06:49
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
telecom government banking
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
9.0
/ 10.0
🔧 Remediation Steps (English)
Immediately update UTT 进取 520W to a patched version if available. If no patch exists, disable remote access to the /goform/APSecurity endpoint, implement network segmentation to restrict access to the device, and monitor for exploitation attempts. Replace the device with a vendor-supported alternative if updates are unavailable.
🔧 خطوات المعالجة (العربية)
قم بتحديث UTT 进取 520W إلى نسخة مصححة إن أمكن على الفور. إذا لم تكن هناك نسخة مصححة، قم بتعطيل الوصول البعيد إلى نقطة نهاية /goform/APSecurity، وتطبيق تقسيم الشبكة لتقييد الوصول إلى الجهاز، ومراقبة محاولات الاستغلال. استبدل الجهاز ببديل مدعوم من البائع إذا لم تكن التحديثات متاحة.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.1 5.2 5.3
🔵 SAMA CSF
ID.BE-5 PR.AC-1 PR.DS-2
🟡 ISO 27001:2022
A.12.2.1 A.14.2.1 A.14.2.5
📦 Affected Products / CPE 1 entries
utt:520w_firmware
📊 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
EPSS0.09%
Exploit ✓ Yes
Patch ✓ Yes
Published 2026-01-11
Source Feed nvd
Views 5
🇸🇦 Saudi Risk Score
9.0
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
exploit-available CWE-119
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