#202020

Adobe Security Bulletin

Last updated on Feb 10, 2026

Security updates available for Substance 3D Modeler | APSB26-08

Bulletin ID
Date published
Priority
APSB26-08
January 13, 2026
3

Summary

Adobe has released an update for Adobe Substance 3D Modeler. This update addresses critical and important vulnerabilities in Adobe Substance 3D Modeler. Successful exploitation could lead to arbitrary code execution, memory exposure, and application denial-of-service.

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 Modeler
1.22.4 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 Modeler
1.22.5
All
3
Download Center

Vulnerability Details

Vulnerability category
Vulnerability impact
Severity
CVSS base score
CVSS vector
CVE number
Out-of-bounds Write (CWE-787)
Arbitrary code execution
Critical
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVE-2026-21298
Out-of-bounds Write (CWE-787)
Arbitrary code execution
Critical
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVE-2026-21299
NULL Pointer Dereference (CWE-476)
Application denial-of-service
Important
5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVE-2026-21300
NULL Pointer Dereference (CWE-476)
Application denial-of-service
Important
5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVE-2026-21301
Out-of-bounds Read (CWE-125)
Memory exposure
Important
5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVE-2026-21302
Out-of-bounds Read (CWE-125)
Memory exposure
Important
5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVE-2026-21303

Acknowledgments

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

  • voidexploit -- CVE-2026-21298, CVE-2026-21299, CVE-2026-21300, CVE-2026-21301, CVE-2026-21302, CVE-2026-21303

NOTE: Adobe has a public bug bounty program. 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.