Out-of-Bounds Write Vulnerability in Substance3D Painter by Adobe
CVE-2026-21305

7.8HIGH

Key Information:

Vendor

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

What is CVE-2026-21305?

Substance3D Painter versions 11.0.3 and earlier are susceptible to an out-of-bounds write vulnerability which may enable arbitrary code execution in the context of the current user. This flaw necessitates user interaction, as it occurs when a malicious file is opened by the user, potentially leading to unauthorized operations on the user's system.

Affected Version(s)

Substance3D - Painter 0 <= 11.0.3

References

https://helpx.adobe.com/security/products/substance3d_pai...
vendor-advisory

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.