Out-of-bounds Read Vulnerability in Substance3D Modeler by Adobe
CVE-2026-21303

5.5MEDIUM

Key Information:

Vendor

Adobe
Status
Substance3d - Modeler
Vendor
CVE Published:
13 January 2026

What is CVE-2026-21303?

The Out-of-bounds Read vulnerability in Adobe's Substance3D Modeler poses a risk of exposing sensitive information from memory. This security flaw affects versions 1.22.4 and earlier, and successful exploitation necessitates that the victim opens a specially crafted malicious file. Attack vectors rely on user interaction, making it crucial for users to be cautious with untrusted files to safeguard their data.

Affected Version(s)

Substance3D - Modeler 0 <= 1.22.4

Substance3D - Modeler 1.22.5

References

https://helpx.adobe.com/security/products/substance3d-mod...
vendor-advisory

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.