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Vulnerabilities

CVE-2026-42479

Medium
CWE-125 — Weakness Type
Published: May 1, 2026  ·  Modified: May 4, 2026  ·  Source: NVD
CVSS v3
5.5
🔗 NVD Official
📄 Description (English)

An out-of-bounds read vulnerability in VrmlData_IndexedLineSet::TShape in the VRML parser in Open CASCADE Technology (OCCT) V8_0_0_rc5 allows attackers to cause a denial of service via a crafted VRML file. The issue occurs because coordIndex values from parsed input are used as direct array indices without validation against the size of the coordinate array during geometry processing.

🤖 AI Executive Summary

An out-of-bounds read vulnerability in Open CASCADE Technology's VRML parser allows attackers to trigger denial of service through crafted VRML files. The vulnerability stems from insufficient validation of coordinate array indices during geometry processing.

📄 Description (Arabic)

تؤثر هذه الثغرة على مكون محلل VRML في Open CASCADE Technology حيث يتم استخدام قيم coordIndex المحللة مباشرة كمؤشرات مصفوفة دون التحقق من حجم مصفوفة الإحداثيات. يمكن للمهاجمين استغلال هذا الضعف بتقديم ملفات VRML مصنوعة بعناية لإحداث رفض الخدمة.

🤖 ملخص تنفيذي (AI)

ثغرة قراءة خارج الحدود في محلل VRML في Open CASCADE Technology تسمح للمهاجمين بإحداث رفض الخدمة عبر ملفات VRML مصنوعة بعناية. تنشأ المشكلة من عدم التحقق الكافي من مؤشرات مصفوفة الإحداثيات أثناء معالجة الهندسة.

🤖 AI Intelligence Analysis Analyzed: May 25, 2026 21:16
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: medium
🏢 Affected Saudi Sectors
energy government manufacturing
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
5.0
/ 10.0
🔧 Remediation Steps (English)
Update Open CASCADE Technology to a patched version beyond V8_0_0_rc5. Implement input validation for VRML files to verify coordIndex values against coordinate array bounds before processing. Restrict VRML file parsing to trusted sources and implement file type validation.
🔧 خطوات المعالجة (العربية)
قم بتحديث Open CASCADE Technology إلى نسخة مصححة بعد V8_0_0_rc5. قم بتنفيذ التحقق من صحة المدخلات لملفات VRML للتحقق من قيم coordIndex مقابل حدود مصفوفة الإحداثيات قبل المعالجة. قيد تحليل ملفات VRML على المصادر الموثوقة وقم بتنفيذ التحقق من نوع الملف.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.12.6.1 A.14.2.1
🔵 SAMA CSF
ID.RA-1 PR.DS-1
🟡 ISO 27001:2022
A.12.6.1 A.14.2.1
📦 Affected Products / CPE 7 entries
opencascade:open_cascade_technology
opencascade:open_cascade_technology:8.0.0
opencascade:open_cascade_technology:8.0.0
opencascade:open_cascade_technology:8.0.0
opencascade:open_cascade_technology:8.0.0
opencascade:open_cascade_technology:8.0.0
opencascade:open_cascade_technology:8.0.0
📊 CVSS Score
5.5
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack VectorL — Low / Local
Attack ComplexityL — Low / Local
Privileges RequiredN — None / Network
User InteractionR — Required
ScopeU — Unchanged
ConfidentialityN — None / Network
IntegrityN — None / Network
AvailabilityH — High
📋 Quick Facts
Severity Medium
CVSS Score5.5
CWECWE-125
EPSS0.01%
Exploit No
Patch ✗ No
Published 2026-05-01
Source Feed nvd
🇸🇦 Saudi Risk Score
5.0
/ 10.0 — Saudi Risk
Priority: MEDIUM
🏷️ Tags
CWE-125
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