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Vulnerabilities

CVE-2026-27276

High
Substance3D - Stager versions 3.1.7 and earlier are affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this is
CWE-416 — Weakness Type
Published: Mar 10, 2026  ·  Modified: Mar 17, 2026  ·  Source: NVD
CVSS v3
7.8
🔗 NVD Official
📄 Description (English)

Substance3D - Stager versions 3.1.7 and earlier are affected by a Use After Free 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 3.1.7 and earlier contain a Use After Free vulnerability (CVE-2026-27276) that could enable arbitrary code execution with user privileges. The vulnerability requires user interaction through opening a malicious file, presenting a moderate-to-high risk for organizations using this 3D design tool. A patch is available and should be deployed promptly to prevent potential compromise.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 29, 2026 11:17
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations in creative industries, architecture, engineering, and government design departments using Substance3D Stager face direct risk. Most impacted sectors include: (1) Government agencies using CAD/3D design tools for infrastructure planning; (2) Architecture and engineering firms (particularly those supporting NEOM and Vision 2030 projects); (3) Media and entertainment companies; (4) Educational institutions teaching 3D design. Risk is elevated in organizations with weak file validation controls and limited user security awareness training.
🏢 Affected Saudi Sectors
Government (Design and Infrastructure Planning) Architecture and Engineering Media and Entertainment Education (Design Programs) Construction and Real Estate Development Creative Industries
⚖️ Saudi Risk Score (AI)
6.8
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Identify all systems running Substance3D Stager versions 3.1.7 or earlier through asset inventory and software audit tools
2. Restrict file sharing and email attachments containing .spp, .glb, .gltf, and other 3D model formats until patching is complete
3. Disable Substance3D Stager if not actively required; move to offline mode for non-critical users

Patching Guidance:
1. Update all affected Substance3D Stager installations to version 3.1.8 or later immediately
2. Prioritize systems used by design teams and those with internet-facing file sharing capabilities
3. Test patches in non-production environment before enterprise rollout
4. Verify patch installation through Adobe's version verification tools

Compensating Controls (if patching delayed):
1. Implement application whitelisting to restrict Substance3D Stager execution
2. Deploy endpoint detection and response (EDR) solutions with behavioral monitoring for suspicious process creation
3. Enforce file integrity monitoring on design file directories
4. Implement network segmentation to isolate design workstations
5. Block execution of files from untrusted sources using AppLocker or similar controls

Detection Rules:
1. Monitor for unexpected child processes spawned by Substance3D Stager (spp.exe or equivalent)
2. Alert on file access patterns indicating memory corruption exploitation
3. Track unusual network connections initiated from design workstations
4. Monitor for suspicious registry modifications in HKLM\Software\Adobe paths
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع الأنظمة التي تقوم بتشغيل Substance3D Stager الإصدارات 3.1.7 أو الأقدم من خلال أدوات جرد الأصول والتدقيق البرمجي
2. تقييد مشاركة الملفات والمرفقات البريدية التي تحتوي على تنسيقات نماذج ثلاثية الأبعاد حتى اكتمال التصحيح
3. تعطيل Substance3D Stager إذا لم يكن مطلوباً بنشاط؛ الانتقال إلى الوضع غير المتصل للمستخدمين غير الحرجين

إرشادات التصحيح:
1. تحديث جميع تثبيتات Substance3D Stager المتأثرة إلى الإصدار 3.1.8 أو أحدث فوراً
2. إعطاء الأولوية للأنظمة التي تستخدمها فرق التصميم والأنظمة ذات إمكانيات مشاركة الملفات المواجهة للإنترنت
3. اختبار التصحيحات في بيئة غير الإنتاج قبل النشر على مستوى المؤسسة
4. التحقق من تثبيت التصحيح من خلال أدوات التحقق من الإصدار من Adobe

الضوابط البديلة (إذا تأخر التصحيح):
1. تنفيذ قائمة بيضاء للتطبيقات لتقييد تنفيذ Substance3D Stager
2. نشر حلول الكشف والاستجابة على نقاط النهاية مع المراقبة السلوكية لإنشاء عمليات مريبة
3. تنفيذ مراقبة سلامة الملفات على دلائل ملفات التصميم
4. تنفيذ تقسيم الشبكة لعزل محطات عمل التصميم
5. حظر تنفيذ الملفات من مصادر غير موثوقة باستخدام AppLocker أو عناصر تحكم مماثلة

قواعد الكشف:
1. مراقبة العمليات الفرعية غير المتوقعة التي يتم إنشاؤها بواسطة Substance3D Stager
2. التنبيه على أنماط الوصول إلى الملفات التي تشير إلى استغلال تلف الذاكرة
3. تتبع الاتصالات الشبكية المريبة التي تم بدؤها من محطات عمل التصميم
4. مراقبة التعديلات المريبة للسجل في مسارات Adobe
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information Security Policies (patch management policy) A.12.6.1 - Management of technical vulnerabilities (timely patching) A.14.2.1 - Secure development policy (secure file handling) A.12.2.1 - Monitoring and logging of access to information
🔵 SAMA CSF
ID.RA-1 - Asset Management (inventory of affected software) PR.IP-12 - Information and Communication Technology (ICT) Security (patch management) DE.CM-1 - Detection Processes (monitoring for exploitation attempts) RS.RP-1 - Response Planning (incident response procedures)
🟡 ISO 27001:2022
A.12.3.1 - Configuration management (software version control) A.12.6.1 - Management of technical vulnerabilities (vulnerability assessment and remediation) A.14.2.1 - Secure development and change management A.12.2.1 - Monitoring and logging (detection of exploitation)
📦 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-416
Exploit No
Patch ✓ Yes
Published 2026-03-10
Source Feed nvd
Views 4
🇸🇦 Saudi Risk Score
6.8
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-416
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