.

Adobe Security Bulletin

Last updated on May 12, 2026

Security updates available for Substance 3D Designer | APSB26-52

Bulletin ID
Date published
Priority
APSB26-52
May 12, 2026
3
style
grid width 12

Summary

Adobe has released an update for Adobe Substance 3D Designer that addresses important vulnerabilities. Successful exploitation could lead to arbitrary file system read and arbitrary code execution 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
15.1.0 and earlier versions
All
style
grid width 12

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.

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.
Product
Version
Platform
Priority
Availability
Adobe Substance 3D Designer
16.0.1
All
3
Download Center
style
grid width 12

Vulnerability Details

Vulnerability category
Vulnerability impact
Severity
CVSS base score
CVSS vector
CVE number
Server-Side Request Forgery (SSRF) (CWE-918)
Arbitrary file system read
Important
6.3
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
CVE-2026-34664
Out-of-bounds Write (CWE-787)
Arbitrary code execution
Important
5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVE-2026-34681
Out-of-bounds Write (CWE-787)
Arbitrary code execution
Important
5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVE-2026-34682
Out-of-bounds Write (CWE-787)
Arbitrary code execution
Important
5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVE-2026-34683
Out-of-bounds Write (CWE-787)
Arbitrary code execution
Important
5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVE-2026-34684

Acknowledgments:

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

  • Francis Provencher (prl) -- CVE-2026-34664
  • jony_juice -- CVE-2026-34681, CVE-2026-34682, CVE-2026-34683, CVE-2026-34684

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
APSB26-52
CardDescription
Priority 3 Security update
CardImage
Adobe
Created
2026-05-12
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-2026-34664 CVE-2026-34681 CVE-2026-34682 CVE-2026-34683 CVE-2026-34684