📄 Description (English)
Substance3D - Stager versions 3.1.6 and earlier are affected by an out-of-bounds read vulnerability when parsing a crafted file, which could result in a read past the end of an allocated memory structure. An attacker could leverage this vulnerability to execute code 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 read vulnerability (CVE-2026-21343) that could allow arbitrary code execution when users open malicious files. With a CVSS score of 7.8, this vulnerability poses a significant risk to organizations using 3D design tools, particularly in creative and engineering sectors. Immediate patching is recommended as the vulnerability requires only user interaction to exploit.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 28, 2026 17:09
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations in creative industries, architectural firms, engineering consultancies, and government design departments using Substance3D Stager face direct risk. The vulnerability particularly impacts: (1) Vision 2030 infrastructure projects requiring 3D design and visualization, (2) Saudi entertainment and media production companies, (3) Government agencies using CAD/3D design tools, (4) Educational institutions teaching 3D design. The attack vector requires user interaction, making social engineering campaigns targeting designers a viable threat. Organizations in Riyadh, Jeddah, and Dammam tech hubs are likely affected.
🏢 Affected Saudi Sectors
Creative Industries and Media Production
Architecture and Engineering
Government and Public Sector
Education and Training
Real Estate and Urban Planning
Manufacturing and Product Design
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
6.8
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all systems running Substance3D Stager versions 3.1.6 and earlier using asset inventory tools
2. Restrict file opening permissions for untrusted sources until patching is complete
3. Disable Substance3D Stager if not actively required
PATCHING GUIDANCE:
1. Update to Substance3D Stager version 3.1.7 or later immediately
2. Verify patch installation by checking version numbers in Help > About menu
3. Test patched versions in non-production environments first
4. Deploy patches through centralized patch management systems
COMPENSATING CONTROLS (if immediate patching not possible):
1. Implement application whitelisting to restrict Substance3D Stager execution
2. Block .ssg and related 3D file formats at email gateways and file transfer points
3. Disable file preview functionality in file managers
4. Implement network segmentation isolating design workstations
DETECTION RULES:
1. Monitor for Substance3D Stager process crashes or unexpected terminations
2. Alert on Substance3D Stager spawning child processes (cmd.exe, powershell.exe)
3. Log all file opens with Substance3D Stager, especially from external sources
4. Monitor memory access violations and segmentation faults from Substance3D processes
5. Track downloads of .ssg, .sbsar, and related Adobe 3D file formats from untrusted sources
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع الأنظمة التي تقوم بتشغيل Substance3D Stager الإصدارات 3.1.6 والإصدارات الأقدم باستخدام أدوات جرد الأصول
2. تقييد أذونات فتح الملفات للمصادر غير الموثوقة حتى اكتمال التصحيح
3. تعطيل Substance3D Stager إذا لم يكن مطلوباً بنشاط
إرشادات التصحيح:
1. التحديث إلى Substance3D Stager الإصدار 3.1.7 أو أحدث فوراً
2. التحقق من تثبيت التصحيح بفحص أرقام الإصدارات في قائمة المساعدة
3. اختبار الإصدارات المصححة في بيئات غير الإنتاج أولاً
4. نشر التصحيحات من خلال أنظمة إدارة التصحيحات المركزية
الضوابط البديلة (إذا لم يكن التصحيح الفوري ممكناً):
1. تنفيذ قائمة بيضاء للتطبيقات لتقييد تنفيذ Substance3D Stager
2. حظر تنسيقات الملفات ثلاثية الأبعاد ذات الصلة على بوابات البريد الإلكتروني
3. تعطيل وظيفة معاينة الملفات في مديري الملفات
4. تنفيذ تقسيم الشبكة لعزل محطات العمل الخاصة بالتصميم
قواعد الكشف:
1. مراقبة أعطال عملية Substance3D Stager والإنهاءات غير المتوقعة
2. التنبيه عند قيام Substance3D Stager بإنشاء عمليات فرعية
3. تسجيل جميع فتحات الملفات باستخدام Substance3D Stager
4. مراقبة انتهاكات الوصول إلى الذاكرة من عمليات Substance3D
5. تتبع تنزيلات ملفات Adobe ثلاثية الأبعاد من مصادر غير موثوقة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information Security Policies and Procedures
A.8.1.1 - User Access Management
A.12.2.1 - Change Management
A.12.6.1 - Management of Technical Vulnerabilities
🔵 SAMA CSF
ID.RA-1 - Asset Management and Inventory
PR.IP-12 - Software Development and Quality Assurance
DE.CM-8 - Vulnerability Scans
RS.MI-2 - Incident Response and Management
🟡 ISO 27001:2022
A.12.6.1 - Management of technical vulnerabilities
A.14.2.1 - Secure development policy
A.12.2.1 - Change management procedures
A.5.2.1 - Information security responsibilities
📦 Affected Products / CPE 1 entries
adobe:substance_3d_stager