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TI-2026-73565 Aliases CVE-2026-103836GHSA-qwf6-8328-9fj9

Adobe Substance 3D Stager out-of-bounds write allows code execution

Priority LOW 35CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

Adobe Substance 3D Stager versions up to and including 3.1.8 contain an out-of-bounds write flaw (CWE-787). Opening a malicious file lets an attacker run arbitrary code with the privileges of the current user. The attack requires a victim to open the crafted file.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Substance3D - Stager is 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00138 3rd percentileScored 2026-11-07
Fix Fixed Adobe Substance 3D Stager (Adobe): 3.1.9

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AdobeAdobe Substance 3D Stagerup to 3.1.83.1.9Patch availableCNA
  • Adobe Substance 3D Stager VendorAdobe Affected up to 3.1.8 Fixed in 3.1.9 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:adobe:substance_3d_stager:*:*:*:*:*:*:*:*up to 3.1.8VulnerableAdobe
  • cpe:2.3:a:adobe:substance_3d_stager:*:*:*:*:*:*:*:* Versions up to 3.1.8 Vulnerable ·Adobe

Remediation

Update Adobe Substance 3D Stager to version 3.1.9, which fixes the flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Adobe Substance 3D Stager (Adobe) Fixed in 3.1.9

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Adobe Substance 3D Stager — adobe.com/trust/security/products/substance3d-stager/apsb26…

    16 records Highest priority Priority LOW 16 LOW

    Other records, highest priority first

    • TI-2026-73579 Stack-based buffer overflow in Adobe Substance 3D StagerPriority LOW 35
    • TI-2026-73572 Use after free in Substance3D Stager allows code executionPriority LOW 35
    • TI-2026-73571 Out-of-bounds read in Adobe Substance 3D StagerPriority LOW 35
    Show all 16 records → Advisory →

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-103836
  2. 2026-10-13 Alias added: GHSA-qwf6-8328-9fj9
  3. 2026-10-14 Priority changed: MEDIUM → LOW
  4. 2026-10-15 CISA SSVC decision points changed

References

Advisory 1

  • TI-2025-38223 Substance3D - Stager | Integer Underflow (Wrap or Wraparound) (CWE-191) CVSS 3.1HIGH 7.8
  • TI-2025-38222 Substance3D - Stager | Use After Free (CWE-416) CVSS 3.1HIGH 7.8
  • TI-2025-38221 Substance3D - Stager | Out-of-bounds Read (CWE-125) CVSS 3.1HIGH 7.8
  • TI-2025-28266 Substance3D - Stager | Use After Free (CWE-416) CVSS 3.1HIGH 7.8
  • TI-2025-28265 Substance3D - Stager | Use After Free (CWE-416) CVSS 3.1HIGH 7.8
  • TI-2025-28263 Substance3D - Stager | Use After Free (CWE-416) CVSS 3.1HIGH 7.8
See all 99 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences