Bulletin ID
Last updated on
May 12, 2026
Security updates available for Substance 3D Designer | APSB26-52
|
|
Date Published |
Priority |
|---|---|---|
|
APSB26-52 |
May 12, 2026 |
3 |
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 |
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 |
16.0.1 |
All |
3 |
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.
Vulnerability Details
|
Vulnerability Category |
Vulnerability Impact |
Severity |
CVSS base score |
CVE Numbers |
|
|---|---|---|---|---|---|
|
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 with HackerOne. If you are interested in working with Adobe as an external security researcher, please check out https://hackerone.com/adobe
For more information, visit https://helpx.adobe.com/security.html, or email PSIRT@adobe.com
