Bulletin ID
Last updated on
May 12, 2026
Security updates available for Substance 3D Painter | APSB26-128
|
|
Date Published |
Priority |
|---|---|---|
|
APSB26-128 |
August 25, 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 |
12.1.2 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 |
12.1.3 |
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 | 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 |
|
Heap-based Buffer Overflow (CWE-122) |
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 |
|
Untrusted Search Path (CWE-426) |
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 |
|
Heap-based Buffer Overflow (CWE-122) |
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 |
|
Heap-based Buffer Overflow (CWE-122) |
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 |
|
Heap-based Buffer Overflow (CWE-122) |
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 |
|
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 |
|
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 |
|
Note
Effective August 11, 2026, Adobe may assign a single CVE identifier to internally discovered vulnerabilities with the same severity rating and CWE category when a release includes systemic fixes.
Acknowledgments:
Adobe would like to thank the following researcher for reporting the relevant issues and for working with Adobe to help protect our customers:
- jony_juice -- CVE-2026-34675, CVE-2026-34676
For more information, visit https://helpx.adobe.com/security.html, or email PSIRT@adobe.com
