#202020

Adobe Security Bulletin

Last updated on Jan 13, 2026

Security updates available for Substance 3D Painter | APSB26-10

Bulletin ID
Date published
Priority
APSB26-10
January 13, 2026
3

Summary

Adobe has released an update for Adobe Substance 3D Painter. This update addresses critical vulnerabilities in Adobe Substance 3D Painter. Successful exploitation could lead to arbitrary code execution.

Adobe is not aware of any exploits in the wild for any of the issues addressed in these updates.

Affected versions

Product
Version
Platform
Adobe Substance 3D Painter
11.0.3 and earlier versions
All

Solution

Adobe categorizes these updates with the following priority ratings and recommends users update their installation to the newest version via the Creative Cloud desktop app's update mechanism. For more information, please reference this help page.

Product
Version
Platform
Priority
Availability
Adobe Substance 3D Painter
11.1.2
All
3
Download Center

Vulnerability Details

CVE-2026-21305
Vulnerability category: Out-of-bounds Write (CWE-787)
Vulnerability impact: Arbitrary code execution
Severity: Critical
CVSS base score: 7.8
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Acknowledgments

Adobe would like to thank the following researchers for reporting the relevant issues and for working with Adobe to help protect our customers:

  • voidexpoit -- CVE-2026-21305

NOTE: Adobe has a public bug bounty program with Intigriti. If you are interested in working with Adobe as an external security researcher, please check out https://app.intigriti.com/programs/adobe/adobepublic/detail.


For more information, visit https://www.adobe.com/trust/security/bug-bounty.html, or email PSIRT@adobe.com.