#202020

Adobe Security Bulletin

Last updated on Apr 28, 2026

Security updates available for Substance 3D Designer | APSB26-19

Bulletin ID
Date published
Priority
APSB26-19
February 10, 2026
3
style
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Summary

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

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 Designer
15.1.1 and earlier versions
All
For managed environments, IT administrators can use the Admin Console to deploy Creative Cloud applications to end users. Refer to this help page for more information.
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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 Designer
15.1.2
All
3
Download Center
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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-2026-21334
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-2026-21335
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-2026-21336
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-2026-21337
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:H/I:N/A:N
CVE-2026-21338
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-2026-21339
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:N/I:N/A:H
CVE-2026-21340

Acknowledgments:

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

  • voidexploit -- CVE-2026-21334, CVE-2026-21335, CVE-2026-21336, CVE-2026-21337, CVE-2026-21338, CVE-2026-21339, CVE-2026-21340

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

CardTitle
APSB26-19
CardDescription
Priority 3 Security update
CardImage
Adobe
Created
2026-02-10
Tags
caas:content-type/documentation,caas:trust-center/security-bulletin,caas:products/substance-3d-designer
PrimaryTag
caas:content-type/article
Details
caas:mnemonics/substance-3d-designer
Arbitrary
search: CVE-2026-21334 CVE-2026-21335 CVE-2026-21336 CVE-2026-21337 CVE-2026-21338 CVE-2026-21339 CVE-2026-21340