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Vulnerabilities

CVE-2026-21341

High
Substance3D - Stager versions 3.1.6 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of t
CWE-787 — Weakness Type
Published: Feb 10, 2026  ·  Modified: Feb 28, 2026  ·  Source: NVD
CVSS v3
7.8
🔗 NVD Official
📄 Description (English)

Substance3D - Stager versions 3.1.6 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

🤖 AI Executive Summary

Adobe Substance3D Stager versions 3.1.6 and earlier contain an out-of-bounds write vulnerability (CVE-2026-21341) that enables arbitrary code execution with user-level privileges. The vulnerability requires user interaction through opening a malicious file, presenting a moderate-to-high risk for organizations using 3D design and content creation workflows. A patch is available and should be deployed promptly to mitigate exploitation risks.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 28, 2026 17:09
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations in creative industries, media production, architecture, and engineering sectors utilizing Adobe Substance3D Stager face direct risk. Government entities (NCA, CITC) managing digital content creation infrastructure, and private sector companies in entertainment, real estate visualization, and product design are particularly vulnerable. The vulnerability could enable supply chain attacks through malicious 3D asset distribution, affecting downstream users and projects. Financial impact includes potential data exfiltration from design files containing proprietary information, intellectual property theft, and operational disruption.
🏢 Affected Saudi Sectors
Media and Entertainment Architecture and Engineering Product Design and Manufacturing Government (Digital Content Management) Real Estate and Visualization Advertising and Creative Agencies Education and Research Institutions
⚖️ Saudi Risk Score (AI)
6.8
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all systems running Adobe Substance3D Stager versions 3.1.6 and earlier using asset inventory tools
2. Restrict file opening permissions for untrusted 3D model files (.spp, .glb, .fbx formats) until patching is complete
3. Implement user awareness training on risks of opening files from untrusted sources
4. Isolate affected systems from sensitive networks if exploitation is suspected

PATCHING GUIDANCE:
1. Download and deploy Adobe Substance3D Stager version 3.1.7 or later from official Adobe channels
2. Test patches in non-production environments before enterprise rollout
3. Prioritize patching for systems handling sensitive design data and those accessible to external collaborators
4. Maintain patch deployment records for compliance auditing

COMPENSATING CONTROLS (if immediate patching unavailable):
1. Disable Substance3D Stager file associations for untrusted file sources
2. Implement application whitelisting to prevent unauthorized code execution
3. Use endpoint detection and response (EDR) solutions to monitor for suspicious process behavior
4. Enforce principle of least privilege for user accounts running the application

DETECTION RULES:
1. Monitor for unexpected child processes spawned from Substance3D Stager executable
2. Alert on file write operations to system directories from Substance3D Stager process
3. Track unusual network connections initiated by the application
4. Log all file open events for .spp, .glb, .fbx files from external sources
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع الأنظمة التي تقوم بتشغيل Adobe Substance3D Stager الإصدارات 3.1.6 والإصدارات الأقدم باستخدام أدوات جرد الأصول
2. تقييد أذونات فتح الملفات لملفات النماذج ثلاثية الأبعاد غير الموثوقة حتى اكتمال التصحيح
3. تنفيذ تدريب الوعي بالمستخدمين حول مخاطر فتح الملفات من مصادر غير موثوقة
4. عزل الأنظمة المتأثرة عن الشبكات الحساسة في حالة الاشتباه في الاستغلال

إرشادات التصحيح:
1. تحميل ونشر Adobe Substance3D Stager الإصدار 3.1.7 أو أحدث من قنوات Adobe الرسمية
2. اختبار التصحيحات في بيئات غير الإنتاج قبل النشر على مستوى المؤسسة
3. إعطاء الأولوية لتصحيح الأنظمة التي تتعامل مع بيانات التصميم الحساسة والأنظمة التي يمكن الوصول إليها من قبل المتعاونين الخارجيين
4. الحفاظ على سجلات نشر التصحيحات لتدقيق الامتثال

الضوابط البديلة (إذا لم يكن التصحيح الفوري متاحاً):
1. تعطيل ارتباطات ملفات Substance3D Stager لمصادر الملفات غير الموثوقة
2. تنفيذ قائمة بيضاء للتطبيقات لمنع تنفيذ الأكواد غير المصرح بها
3. استخدام حلول الكشف والاستجابة على نقطة النهاية (EDR) لمراقبة السلوك المريب
4. فرض مبدأ أقل امتياز لحسابات المستخدمين التي تقوم بتشغيل التطبيق

قواعد الكشف:
1. مراقبة العمليات الفرعية غير المتوقعة التي تم إطلاقها من ملف Substance3D Stager القابل للتنفيذ
2. التنبيه على عمليات كتابة الملفات إلى دلائل النظام من عملية Substance3D Stager
3. تتبع الاتصالات الشبكية غير العادية التي يبدأها التطبيق
4. تسجيل جميع أحداث فتح الملفات لملفات .spp و .glb و .fbx من مصادر خارجية
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Information Security Policies and Procedures ECC 2024 A.6.1.1 - Organization of Information Security ECC 2024 A.12.2.1 - Controls Against Malware ECC 2024 A.12.3.1 - Management of Technical Vulnerabilities ECC 2024 A.14.2.1 - Secure Development Policy
🔵 SAMA CSF
SAMA CSF ID.BE-1 - Business Environment SAMA CSF PR.IP-12 - Software, Firmware, and Information Integrity SAMA CSF DE.CM-8 - Vulnerability Scans SAMA CSF RS.MI-2 - Incidents are mitigated
🟡 ISO 27001:2022
ISO 27001:2022 A.5.1 - Policies for Information Security ISO 27001:2022 A.8.1 - User Endpoint Devices ISO 27001:2022 A.12.2 - Protection from Malware ISO 27001:2022 A.12.3 - Management of Technical Vulnerabilities and Exposures ISO 27001:2022 A.14.2 - Secure Development Policy
📦 Affected Products / CPE 1 entries
adobe:substance_3d_stager
📊 CVSS Score
7.8
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack VectorL — Low / Local
Attack ComplexityL — Low / Local
Privileges RequiredN — None / Network
User InteractionR — Required
ScopeU — Unchanged
ConfidentialityH — High
IntegrityH — High
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score7.8
CWECWE-787
EPSS0.03%
Exploit No
Patch ✓ Yes
Published 2026-02-10
Source Feed nvd
Views 6
🇸🇦 Saudi Risk Score
6.8
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-787
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